When is it "too young"?

[yoda]

P.S

Dated 21 y.o while 15.

baddd idear.

ummm yeah

i dated a freshmen when i was a senior for like 3 days. she had told me she was a sophomore though.

now, of course i wouldnt do that shit though. wayyyyyy too immature. im 20(21 in a few months) and my girlfriend is 18.