Can a 16 year old boy date a 12 year old girl?
Yes, but it must be a platonic (i.e.: non-sexual) relationship.
Added: Also, since they are both minors, they must also have parental permission to go out.
It really just depends on how mature the 12 year old boy/girl isand if they act their own age. It also depends on how realiable and well grounded the 15 year old boy/girl is. And if your parnets think that you should wait a couple years to date the boy/girl then you should respect their dessitions. And if you are thinking about dating the boy/girl you should ask the opinions of both your parents.