I hear undertones of something else in that comment. I hear someone who resents "social issues." I hear someone who is intolerant and frustrated because whether it's real or not, they are feeling the pressure of political correctness. (you hear people whine about political correctness all the time, don't you?) Of course it's good for kids to be exposed to all kinds of people with whatever challenges those people face. That's just life. I think you're totally right.