Yes it is illegal. It doesn't matter if he's 18 and she's 17.
Yes
Yes
no
That depends on where you live.
No
No, not if the parents of the 16 year old approve of it.
No the 19 year old can get charged with rape since the 16 year old is still a minor
Only if the age of consent is higher than 16 in their state.
No. Unless there is parental consent for the minor (16 year old) to marry the adult 19 year old.
Yes, it is legal. Not smart, but not illegal.
Yes.
its illegal
Yes, it is illegal in California for a 16-year-old and a 19-year-old to have sex unless they are married, which would require either the permission of the younger partner's parents or a court declaration of emancipation.
There are no laws about dating. It is illegal to engage in sexual activity with someone under the age of 16.
Absolutly... and if its sexual, its illegal