Riding at the curb is just fine, riding on the very top of a 3inch curb, while trying to pass on the right is just not cool. You could really injur yourself or someone else.

My anger really is about his riding. He takes my riding very seriously and is very supportive. When we ride together though, he is "just having fun" "he won't get hurt or hurt anyone". I am not worried about his influence on my son, just his safety. To me it is just bizzare behavior from an otherwize rationale being!!!!