I am thinking of getting a TJ for my son. This will be his first vehicle. He is very responsible and not a hot head. My wife is concerned about safety being he is a new driver. In her head, they can be prone to overturning and doesn't feel it is appropriate for a first car for a new driver. She feels that there are safer choices. I have a JK and it would be nice if he had a Wrangler too. What are your thoughts on this concern that my wife has?