Gone are the days when discipline meant a couple of licks with a leather strap or a paddling on your buttocks. Corporal punishment is simply unacceptable in 21st century America. Indeed it is illegal in twenty-six states. Discipline is something which is defined by and meted out according to the contract between you and the school.
The important concept to understand is that as a student in a private school you are governed by contract law, not constitutional law. In other words, you do not have the same rights as a public school student. If you violate the terms of your contract, you will be dealt with accordingly.
Many schools have 'zero tolerance' policies when it comes to capital offences involving substance abuse, cheating, stealing and sex. You need to take your school's code of conduct seriously and abide by it or face the consequences. These consequences could be as serious and final as expulsion from the school.
One of the reasons a dress code is more popular is that it gives some modicum of self-expression while at the same time maintaining a standard of dress. Oversize clothing, all black outfits, extreme hair styles and other symbols of gangs and fringe activities are simply not on.
This dress code from Foxcroft School is typical of the sort of dress code you can expect at a girls' school:
"Foxcroft's dress code is fairly simple – khaki or black pants or skirts with solid-colored, collared blouses which are tucked in. Shoes (which may not be athletic shoes) must have closed toes and backs. Dress code is required during the Academic Day."