You can date but not have sex. Age of consent is 17 there.
In most countries dating is not a crime even among minors. Minors however may need the parents consent.
No. This would be a case for the CPS since she is a minor and needs a guardian. Her parents are still obligated to support her. Not wanting to is not an option. Missouri does also not have a early emancipation for minors.
The girl will almost certainly think so. It does depend on the circumstances. If the guy and girl run into his parents some night at a popular restaurant, it's just what it seems; it's a casual introduction. If the guy says "I want to take you home to meet my parents", that's an altogether different thing.
16
No. The 16 year old is a minor and the 21 year old an adult and this is against the law.
No.
Yes, he can.
yes they can. yes they can because she is still a kid.
tease maybe or she just likes girls
Yes
It shouldn't matter.
no he cannot