Really? This is what took you weeks to come up with. Yes, kids under eighteen can have consensual sex.Can children under 18 lawfully consent? You know the answer... you've heard of rape cases.
Those 13 years old and younger cannot consent to sex with anyone (§566.067). 14, 15 and 16 year olds cannot consent to sex with someone who is more than 4 years older (§566.071) or who is 21 and older (§566.034). 17 year olds can consent to sex with anyone 14 years or older (§566.034).