I am 16 years old, should I do weight lifting 3 times a week?
Preferably not!! But u can lift light weights
You sure can
I don't know about whether you should or not, but you definitely can no problem. It is entirely up to you.
Honestly, health experts advise against it. But it's up to you.
If you're comfortable with it then go for it.
Don't push it.
Go with high reps, low weights rather than vice versa though.
Stop growing first, then lift