They can own a boat, but you need to check your state laws as what age a person can operate a boat.
A trust for a minor can own stock, but a minor cannot. Someone can own an account or stock in trust for the minor.
No limit
A minor cannot own real property. It could be held in a trust for the minor.
Only if you have your own boat.
who is he?
A minor cannot legally own property. Property can be held in trust for the minor until they reach the age of majority, usually 18.
MONEY
A minor cannot legally own property. Property can be held in trust for the minor until they reach the age of majority, usually 18.
A minor can own a vehicle in the state of Wisconsin, but under certain circumstances. The minor parents or guardian must sign a statement that consent the minor to purchase the motor vehicle and is ok with the purchase.
That question has no answer, because I don't own a boat. But regarding any boat in general, if the boat is afloat, then its density is less than 1.0 .
Everyone has their own opinion on this, but for me this will probably be F-sharp Minor.
The state of California does not require you to have a boat insurance but it is important to get the boat insured for your own sake and safety in future.