Charge your children rent.
Unless they are emancipated, I am assuming it is illegal for a minor to rent!
Starting on their 18th birthday, technically yes. Parents are responsible for providing for their children until the age of majority (whether they like it or not). As soon as they reach the age of majority (usually 18), the parents can charge them rent, kick them out of the house, or whatever... all perfectly legal (if a tad cold-hearted).
18 when they become an adult. A minor can not rent an apartment nor sign contracts.
Nothing! The Law requires your parents to provide you with suitable shelter and food.
As long as the child is a minor it's the parents duty to pay for the expenses. If the child is emancipated it has to pay for itself. If the child wanted to move out of the family home and the parents gave permission they have the right to expect rent if the place belong to them. There's always the option of moving back home where no rent is expected.
First of all, a 'minor' is not legally capable of making valid legal contracts for 'rent' or anything else. Secondly it is POSSIBLE you might be become involved in a charge of "Harboring a Runaway."
Parents are legally obligated to support their minor children. Most minors have no source of income with which to pay rent anyway, so such demands would be impossible. If a particular child happens to be a wealthy child actor, and the parents would like to receive rent, that would be possible, although even then it would seem silly. No it's not legal. But I wonder if you actually have a rent agreement with your parents or if you are working and they want you to pay rent when in fact they are saving the money to give to you later and this is a lesson in personal finances and for you to get used to living on a budget. My parents did that to me and I was the only one who was not shocked when I moved out how little money I had left. All my friends were complaining but they were not used ot it as I was. I also had a nice nest egg to buy furniture for.
Before they are 18 and are still in high school, you would provide housing. After that, it is up to you to set the standards for payment and participation in the household.
Yes, they have the ability to charge rent. It is their responsibility to maintain the assets of the estate.
Their adult child, yes. If you are not in school and working there are no reasons why you should live for free.