I would say don’t go to college in either Taiwan or China. You can always study abroad at either places. Most schools should offer something for China and possibly Taiwan. A western education is more valued in both China and Taiwan so you can always come to either places.
I studied in China as well as lived in Taiwan. China is very fun but for me hard to want to live in unless I made serious money in a good city. I hated Beijing, I felt people were pretty cold there and the pollution is not good. It was crowded and far things are made things annoying. Plus Beijing food is not good. Blend for me. The only plus is I went to tsinghua there and people respected that and treated me well when I told them I’m studying there.
I like Sichuan a lot. Also chengdu.
Also a problem for me with China is eating. You have to be careful as water is undrinkable. And food can be sketchy in safety in even nice restaurants. Alcohol is all fake basically.
China is a lot fun if you want to go out and party. They party hard 7 days a week.
Taiwan’s party scene is mostly Taipei. Taichung has some as well as kaoshung.
I still much prefer Taipei. For living.