@hst666
You cannot legally enter into a contract until you are 18. I believe that is true in every state.
That is actually incorrect. You can legally enter into a contract UNDER that age, it's just that it is possible for the contract to be considered voidable IF a Court of Law agrees.
Keep in mind there are four parts to a legal contract:
Parties competent and willing to enter into the contract.
An offer.
An acceptance of the offer.
Some type of mutual obligation. (I'll give you this in return for that.)
Depending upon the state, someone as young as 15 can enter into a legal contract for life necessities, such as food and shelter. Even though the contract may be voidable, it is still considered valid and the person providing those life necessities is liable for them.
What does THAT mean, you ask? Simple. You rent a house to someone without asking for ID, and they're 16. It's a voidable contract, but NOT an invalid contract. So long as the 16 year old continues to pay rent, that's a life necessity and you MUST honor the contract, and a court will actually ORDER you to do so.
There is a difference between a contract that is invalid and one that is voidable. An invalid contract is one that is completely invalid from the signature, and is considered to have not been signed in the first place. A voidable contract is one that is considered valid, but COULD be voided is one of the conditions necessary for it to be valid MAY have been met and CONTINUES to be met.
Now, where your main thesis comes into play is simple.
marriage under 18
Guess what? It's up to each state. This is not something that the Federal government (here, anyway) has any say in whatsoever. Now, in GENERAL, 18 is the age where people can give their own consent across the board. HOWEVER, keep in mind you're being TOO restrictive. In various assorted states around this country, the age can be 16 (or lower!) with the consent of parents OR a judge, or sometimes even a combination thereof. (Vermont, for example, with parental AND judicial consent, is 14. Massachusetts the statutory limit is 12!)
No, I'm not a lawyer. I'm worse - I'm a salesman. I sold cars for 10 years, and now I sell real estate. The other minor detail that I'm also a Criminologist means that I've studied the law, AND I've also help write and sign a LOT of legal contracts over the years, and have had WAY too much education on contract law as it pertains to sales.