Are High School gym classes any good at helping the overweight student rather than making him/her the laughing stock of the class?

I remember when I went to high school I use to lose sleep over gym class because I was always the worse, the slowest, the weakest, etc. Fellow students used to laugh and so did the teachers. The kids that “can’t” should not compete with kids that “can”. You wouldn’t put a slow reader with advanced readers. Have the schools come a long way with this or are they still where they were in the 80’s?