The youngest dating age?

My first boyfriend was when i was 13 it lasted a day. lol not good....then at 15 i dated a 19 year old and there was no problem with the age difference cuz boys are so much longer to matture....infact im 16 now and have been seeing a 20 year old and hes just as immature as any other person..age doesnt matter as long as your heads are on the same wavelength...hope ive helped (: x