If someone wants to find a bf or gf,how old he or she needs or should to be?

And I'm puzzled in this

中国法定结婚年龄男22女20，想谈啥时候都行吧

I think you just should be ready for a relationship, no matter what age.

I'm assuming around your age. Imo about a 2-3 year age gap maximum.

I'll sound old school, but I'd say at least 16 yo. I know from experience anything attempted before that age is, well, quite pointless no matter how "mature" we can be.

junior high school is okay