Is prescription -0.50 low enough to wear glasses full time?

I'd definitely recommend wearing them most of the time, if not all. I think my first prescription wasn't too dissimilar, but I never bothered wearing them.

Now I think my eyes are about 5-10x worse..

Although, that wasn't purely because I didn't wear my glasses then, I didn't wear them much even after my prescription got stronger.

Edit: I wouldn't be too worried about wearing them. I have glasses pretty similar to that and some people say I look better with them on. It's just a case of personal preference, really.

The only thing that I hate about glasses is how dirty they get! And how easily they get dirty! Annoys me so much, which is why I prefer (and wear) contact lenses. But hey, being able to see is worth putting up with a slight inconvenience. My glasses are undoubtedly better for vision than my contacts.

And are you an ophthalmologist to present your view so confidently? Doctors differ regarding whether or not glasses are bad for the eyes; there is no general consensus.

There's no need for hostility; you could have put forth your inquiries in a more civil manner. I have experience; I started wearing glasses full-time when I was 11 and my eyesight was -0.something. I stopped wearing glasses full-time when they turned -3.something. I should have stopped before; I was told by many people to stop, but I didn't because I couldn't bear seeing blurred things all around me.
I'm only saying this so that OP doesn't have to go through all that I did. If he's old enough, he can get surgery done and be fine. He doesn't have to ruin his eyesight any more than it already is.

Clearly, since ophthalmologists (medically trained and with a legal and professional duty not to make a patient's health worse, remember) the world over routinely prescribe spectacles for the treatment of eye defects, to the extent that about 40% of the population wears them, there is a consensus.

This proves very little, tbh. Your sight changes a lot. Mine changes a lot depending on a lot of things. Wearing glasses isn't one of them.

Three years ago, my vision was -1.5 -1.25

My doctor prescribed glasses for driving and nothing more. She said "Frequent or continous use will cause further advancement of myopia". Also she explained that one must do exercises for eyes.

A lot of doctors say that they do not help. My doctor said they do not help because people are not doing them. She forgets to do them too what to say about person who has no idea how eye works.

She said that eyes have adapted to watch only close objects because we spend a majority of time doing exactly that while people living in wild have great vision.

In other words, the problem is out lifestyle, how much time our eyes spend watching close-up objects. If you continually wear glasses, by my logical reasoning, your eyesight will decrease. You'll continue to look to close objects, plus the aid of glasses. The combination of this will result in weakening eye muscles.

There are a lot of studies about why myopia is progressing. The main reason - weak and imbalanced eye muscles.

Also our foods are not rich in minerals and vitamins as was like 200 years ago when preservatives, chemicals and other stuff were not used. Everything combined, your body becomes weaker, and it definitely affects eyesight.

My conclusion is to wear glasses only when necessary.

Wearing glasses is actually on top of the list of those 'lots of things'.
When you wear glasses 24/7, you're basically looking through a microscope 24/7. Obviously it's going to strain your eyes. It's an artificial thing; it isn't natural.

You can't tell whether or not your eyes are getting strained just by wearing or not wearing glasses.
Your eyes will get strained without glasses only if you consciously try to see something you can't see. By wearing glasses, your eyes are strained all the time.
I can't link you to any sources that talk about this on the Internet, because I haven't read about it on the Internet. I have a book called Better Eyesight Without Glasses. Perhaps you would care to read about the Bates method.

I'd definitely recommend wearing them most of the time, if not all. I think my first prescription wasn't too dissimilar, but I never bothered wearing them.

Now I think my eyes are about 5-10x worse..

Although, that wasn't purely because I didn't wear my glasses then, I didn't wear them much even after my prescription got stronger.

Edit: I wouldn't be too worried about wearing them. I have glasses pretty similar to that and some people say I look better with them on. It's just a case of personal preference, really.

The only thing that I hate about glasses is how dirty they get! And how easily they get dirty! Annoys me so much, which is why I prefer (and wear) contact lenses. But hey, being able to see is worth putting up with a slight inconvenience. My glasses are undoubtedly better for vision than my contacts.

I know! Especially with the first pair of glasses I had

Typical 'dorky' looking thin frames with some stupid pattern I think, I have no idea why they (or my family) expected me to wear them.

A bit like the OP, I've never really liked wearing them outdoors. Happy to wear them inside, but never really liked to outside. Which is why I got contacts

I went from -1.75 to +0.5

I do wear mine full time; but I get headaches if I don't wear them.

Usually it happens the other way round.

How come? For as long as I can remember, I've always been short sighted.