So you’re perfectly fine with a 14 year old girl having sex.
Suppose her contraception does’t work? Would you favor your 14 year old daughter raising a child on her own, you the grandmother raising the child, or abortion?
Plesae answer, this is not a rhetorical question; since you think a 14 year old is perfectly capable of having an active sex life, what about if she gets pregnant?
No, it's a very bad idea. I just don't think jail time is the answer if she's having a consensual relationship with someone so close to her own age.