Is it weird to like older women

Not weird at all. Some people like Tina now at 36, some loved her 20 years ago when she was 16.
It's all about personal taste.

No.
Different people have different attraction and dating preferences.
Age, accent, height, looks, body shape, hobbies, activist/political/religious beliefs.

As long as everyone is a consenting adult...Keep in mind that when it comes to serious relationships, you'd probably have issues in terms of where you both are in life and what your near future might be like. Silly age relationship calculations are used by children lol. It's about where you are on the same page and what your future, realistically, could look like.

Everyone has their own preference so it doesn't matter. You love who you love and there is no problem in liking someone who is older (;

Personality wise, I prefer older women more tbh. They come across as experienced, open and generally more accepting compared to younger ones but this is just from my own observations.

I find them more attractive

I don't blame you.

Celeb wise, I think some older stars like Liz Hurley or Emma Bunton for example are still absolutely stunning!

What about Tina O’Brien

She's alright, but not really my type.

I like older women even though I am only 19 I like women in their 30s, I liked some teachers at school and I like Tina O’Brien but she’s 36. Some people have called me weird for liking them and some people are the same.