Spiderman pajamas

Spiderman is the name my colleague and I have given the son of one of our students because he is so often sporting spiderman pajamas, even in the middle of the day. Interestingly, this phenomenon of pajamas being worn as regular clothes, out in public, in the middle of the day, is not confined to children, nor to Nupho. Adults can often be seen sporting nightshirts with leggings or full pajama sets as shirt and pants, on the road, at the market, or in the tea shop. It seems that it is not unusual for Thai people - or Cambodians, from what I saw on my brief trip there last month - either. Maybe this is related to the love here, by adults, of cartoon characters? Or maybe just some cultural disconnect...