Maturity and age have very little to do with one another. Everything’s relative, everything’s a shitty concept your mom’s generation is oppressing you with and Apple is trying to sell you products via.
It’s kind of like how health and age have very little to do with each other. Babies are born with leukemia and smokers live til they’re 100. It’s all anarchy. Just be kind to people and admit when you’re wrong and try new things as long as you’re brave enough to and you’ll be fine.