I work away from home, and I don't want to be fixing the computer every time I get home. They use my PC at the moment and I have had to reinstall the O/S from scratch after they had been using it.
If you had a Mac, you wouldn't have to do that.
You seem to be using your bad experience with PCs almost as an excuse for not moving to a better platform. Like a wife who stays with an abusive husband.
No, you may find it hard to believe, but there really is a better way … and not all computers are the same.
Buy a Mac; you'll love it and your kids will love you for it.