Hi Chezza,
I would highly recommend not uninstalling World Adventures. As that may cause even more game problems than it would fix.
It sounds as if your game glitched some where along the way. I'm not sure if there is a fix for it, other than to go back to a previous save. Did you save the game just before traveling to France? If so, go back to that save.
If you do have the before travel save and still don't want the dad in your game, you evict him from the household if you like.
I hope this helps, and Welcome to the Forum,
MrsFlynn