Butt Pistol

Is there a better Solution to being weapon free in school than wearing school uniforms?
I’ve seen both kids with uniforms, and regular baggy clothes both be able to fit weapons such as guns, swords, pistols, etc. into their underwear and undershirts, also tucked in their pants?!? This scares me more than disgust, but is there a better solution to being weapon free without wearing school uniforms, and not being able to stuff a hunters gun in your butt?
There is no guaranteed solution Uniforms are not so much for weapons free as to keep kids from getting jealous that one kid has better clothes than the other kid or to prevent gang clothing attire (ie certain colors that signify gangs).
They could have a security guard or a cop with a weapons scanner scan each child, but that gets expensive and might make them feel like they are going into a prison.
If you are worried enough, you can do home-schooling, but this does little to teach kids how to socialize with others…a trait which is invaluable in adulthood and in employment situations.
Paint Ball Pistol Butt Shot