It is impossible to treat a child too well. Children are spoiled by being ignored too much or by harshness, not by kindness.
The American middle class always wants to be upper class and is scared to death of being lower class. It's a highly mobile group of people. They're not like the people that want to be shopkeepers forever, have always been shopkeepers and want always to be shopkeepers. These people mostly are insulted by being called middle class.