No it's a GREAT IDEA. I went to parochial grade school K through 8 where uniforms were worn by all and parochial HS where jacket tie non jean pants were required. The girl HS (separated by a 12 foot block wall had similar but feminine dress codes.
There was never any clothing distractions and education was the #1 requirement.
Went to an all boys Catholic high school where jacket and ties were required.
What most did was keep the jacket in their locker, along with their gym stuff and only took it home at the end of the school year.