Do you think it's weird for an adult to watch shows he/she liked as a kid?

I watch the original Power Rangers on Netflix and have recently watch some first season Pokemon episodes. My mom thinks I shouldn't watch those two shows. She sees no issue with me watching shows like Doug, Rugrats, Rocko's Moderen Life, or Hey Arnold though. I don't care to watch anything on TV except maybe a little news, pro wrestling, some sports, and Simpsons. I don't see what the big deal is. I mean it's not like I'm watching Blue's Clue's or Dora and actually talking to the screen.