Is this normal?

You're still very young, you'll change your mind when you get older

Not everyone decides to have kids though so she might not change her mind.

Yes she might not but chances are he/she will and its far too early to even be thinking about children at this age, unless he's/she's planning on getting married early
Ideas, thoughts, perceptions all these change with experience as life goes on
Your's might too, maybe not even have your own child but something might cause you to adopt a child

There's nothing wrong with it at all. I spent a lot of years not thinking about kids and just begrudgingly assuming I had to have them because that's just "what you did".
Then one day I realised I didn't HAVE to have kids at all and I felt like a huge weight had been lifted. I had honestly spent a lot of time trying to work out how I should fit kids into my life and was generally down about it. I don't know why I never realised earlier I could just decide to not have them.
Its been about 5 years since I decided I didn't want them and I've not changed my mind.
I'm not maternal and I don't go all doe eyed over babies or kids or anything like that.
I've heard all of the "you'll change your mind" and "who's going to look after you when you get old" and "you're selfish" and all that but it hasn't altered my decision at all.

You may change your mind or you may not. But don't ever just have kids just because you think you should. If you don't want to, don't, it is your choice and no one else's.
Its good your thinking about how much of a commitment it is and stuff because it shows maturity.
There's plenty other ways to have kids in your life without having to have them of your own. Friends' kids, volunteering with kids, fostering, working with them. All kinds.

Nope, completely normal, not everyone wants children, and some people don't change their minds later on, it's completely fine

Yes she might not but chances are he/she will and its far too early to even be thinking about children at this age, unless he's/she's planning on getting married early
Ideas, thoughts, perceptions all these change with experience as life goes on
Your's might too, maybe not even have your own child but something might cause you to adopt a child

I don't think it's too early to be thinking about whether you want kids or not. It's not like the op is deciding to have them now, but to put some thought into it, instead of just getting pregnant without any thought (which some people really do) is very mature.
Mine is not going to change as I know my own mind and I've never ever wanted kids or been maternal and I wouldn't be in a situation to adopt a child either.
No one ever says "you might change your mind" to people who do want kids do they? So why do they do it for the ones who don't?

I feel the same way 😭

Thank god!

I don't think it's too early to be thinking about whether you want kids or not. It's not like the op is deciding to have them now, but to put some thought into it, instead of just getting pregnant without any thought (which some people really do) is very mature.
Mine is not going to change as I know my own mind and I've never ever wanted kids or been maternal and I wouldn't be in a situation to adopt a child either.
No one ever says "you might change your mind" to people who do want kids do they? So why do they do it for the ones who don't?

You're still very young, you'll change your mind when you get older

I understand I'm only asking because I hear a lot of people saying how they live children and I feel like the odd one out for not feeling that same connection yet. I'm in no way planning to have kids right now! I'm far too young

Everyone says that to anyone who is young and expresses an opinion that they don't want children, i've been told that my entire life despite the fact i am infertile. Plenty of people dont want children and realise that young, OP may decide to have them - either choice is fine but people do not know other people better than themselves.

Well you're entitled to your opinion, but I do think it's too early and it's better to put the energy on studies or other things. Unless she's thinking of having sex which could lead to pregnancy then there isn't much point to think about it.
You say you know your mind and your perspective won't change? That's what your thinking right now, but like I said as you experience more things in life and gain more knowledge you could change your mind down the road. You've never wanted kids or been maternal, but that has no bearing on what you could want in the future. People have had life experiences that change their mind on certain topics, it could happen to me and it could happen to you too. Right now I know that I want kids but somewhere in the future perhaps something would make me not want kids and change my mind, depending on what experiences I have.
What makes you say you won't be in a situation to adopt a child in the future, you can't even guarantee that you'll be alive tomorrow, you have no idea you would go through later on in life.
And yes people don't say "you might change your mind" to people who want kids because it's human nature to want kids, it's what people are used to but in no way does that mean that this same person that wanted kids might not want kids in the future.
Ideas, thoughts, perspective it all changes as we experience more stuff in life, and this single fact is what allows us to grow and become better.