I would think that basic uniforms such as solid color polo shirts and khaki pants would eliminate a lot of the hassle about what is and isn't appropriate, especially at the high school level.
There would be no fuss over t-shirts with writing on them, spaghetti strap tops, tank tops, etc. Plus, no arguing about what to wear to school, just put on your uniform and get going. It would be easier on everyone as far as I can see.

I've read/heard of parents in school districts with uniforms having "uniform swaps" where you bring uniforms your kids can no longer wear and swap with other parents.

I have to wear a uniform at work so I have no problems with kids having to wear them to school. I have plenty of time to express my individuality outside of work and having a uniform eliminates so much hassle.

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