I'd rather tell my kids to use their hand until they are 18. And if they are banging chicks, they better have a car, a job, and at least 10k in the bank.
If I have a son he ain't gunna bee no WIMP!
And if they do end up banging chicks id tell them use a condom and spermicide.
Condom has broke too many times for me. Also, that's how I was conceived, so I don't trust condoms a lot. Condom success rate is only 82% iirc. Spermicide is backup. And I'd buy him Plan B too.
It took me a while to learn self control with ejaculation and sexual behavior, it all fell into place after I started doing kamma sutra, though. Would highly recommend
@Bradley