The difference Nigel is that when you have kids, you can't just go home and relax after a tournament. You have to provide your kids with food. You have to provide them with shelter. You have homework assignments that need to be done. You have a house that is constantly messed up and it is YOUR responsibility to get it cleaned. You have work obligations that need to be taken care of. If your child is screaming because they are bored or tired or cranky, you have to deal with it.
What people are saying is that in this day and age, time spent as a family is important. And it is important that the time is spent wisely. Spending that time sitting in a gym when they could be doing other things is not time spent wisely.
It makes me very upset that you can't seem to understand that. My Time Would Be Better Spent With My Kids Fulfilling My Family Obligations instead of sitting on my butt in a crowded gym full of screaming kids and parents every Saturday for 4 months. If you still don't get it, maybe you could stop by at my house and help me with laundry, dishes, cleaning and other things that comes from having kids and being gone every evening.