Your freedom of expression may now be gone, but your appearance will be better. You may not like the idea of being forced to wear your pants at your waistline as it will give people a better look for you, but this will not hurt.
That's purely opinion and shouldn't be used to support a law restricting how one wears their pants. Some people might think it looks better to have your pants pulled all the way up, some people might think it looks better to have them sag, some people might think everyone looks better with no pants.
I mean, I personally think guys wearing sleeveless shirts that are split down the sides to the point where the front and back of the shirt are barely attached look ridiculous, but that doesn't mean a law should be put in place requiring all men to wear flannel.