Boi wtf is my dad tryna teach me

Dis boi rlly says that I'm 14

Like DITCH WAT

HERES THE PROOF DAD IM 13

K he says that in Bangladesh they say the current age and in America it's the finished age.

Wat

So since my 13th birthday arrived, I finished 13??? And in Bangladesh I'd be 14??? Wtf????????

Dad y u teaching me all these useless things that only get me even more confused?