Yes
16 y.o with valid driver's licenses and proof of insurance
You can but it can't be gas powered only electric.
Yes, but there is a small "charging" fee. Still much cheaper than renting.
Yes with proof of insurance. No one under 16 y.o. can drive.
Yes but have to have proof of insurance, and follow the same rules
I saw plenty of personal golf carts when we were there, but you may want to call and ask to be sure
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