According to Louisiana law, 16 year olds do NOT need permission from their parents to be vaccinated. I'm not sure where these people are getting the idea that what happened was illegal.

LA. Rev Stat tit. § 40:1079.1

"B. The consent of a spouse, parent, guardian, or any other person standing in a fiduciary capacity to the minor shall not be necessary in order to authorize such hospital care or services or medical or surgical care or services, or administration of drugs to be provided by a physician licensed to practice medicine to such a minor."

Those parents are going to have a tough go of winning a lawsuit by claiming it's illegal for their kid to get vaccinated without their consent.

I'm not saying that I side with the 16 year old, though. Just that parents need to be aware of what the laws are for their individual state. Way too many parents just automatically think that minor children must have parental permission to be vaccinated.