希望你不要误导，

即使你的那个州不enforce学校的这个免责协议，你也不能推广到所有的州都这样。我这里给你摘一段你看看：

The Massachusetts courts generally uphold the validity of releases and waivers that are entered into knowingly. This includes pre-accident releases as well as releases in connection with settlements. Our courts have repeatedly affirmed just how broadly Massachusetts law favors the enforcement of releases.

Simply put, a defendant ordinarily may "validly exempt itself from liability which it might subsequently incur as a result of its own negligence." Lee v. Allied Sports Assocs., 349 Mass. 544 , 550 (1965) (car racetrack accident).

In the more recent case of Sharon v. City of Newton, 437 Mass. 99 (2002), the court enforced a release signed by a father on behalf of his daughter as a condition of her participation in cheerleading in her high school. After she was injured, the family brought suit for the school's negligence. The release was raised as a defense, and the court strongly affirmed the enforceability of the release, citing a host of public policy arguments.
全文链接：www.massachusettsinjurylawyerblog.com/2013/03/massachusetts-law-on-waivers.html