One of our local restaurants banned children under 6. Caused quite a flap, but it seems the vast majority of patrons supported the idea. The owner says that since the ban, business has quadrupled.
A restaurant did that? As the father of a three year-old, I would like to say:
It's a free country. I won't be going to that restaurant with my family, but other people might not go to one of my favorite places because they don't like restaurants with kids. I think that's all great! Choice is a beautiful thing. There are plenty of places that make it their speciality to serve families with kids of all ages.
I really have a problem with people who expect every business to cater to them no matter the circumstances. For all those gays who want to get married, for example, why just not patronize Christian bakeries? Plenty of bakeries will make whatever you want.