Eventually someone will get very hurt.
Then the lawyers will step in and everyone is going down.
They are going to sue disney, the parents of the kid driving the cart, the guy who rented the cart to the parents, the company who maintains the carts, the company that made the cart, the guy who invented carts, etc.
And the only people who are going to lose everything are the parents of the kid.
Parents are responsible for the willful misconduct of children.
It doesnt matter that is was just this one time I let him or her because of the constant whinning about driving the cart.
It doesnt matter that you thought it was cute to watch a 4 year old drive grandpa around.
The rules say no kids drive, and that means no kids drive.
And as a parent you are going to burn for 10 minutes of fun.
I for one am not willing to lose my house to a lawsuit.
And if you think it cant happen, just think back a few years ago when a women won a $4 million dollar lawsuit against mcdonalds because her hot coffee was too hot.
And when the lawsuits end disney will no longer allow carts.
Not that I have any opinions about this issue.