The fact is that having a 16 ft. constrictor that may or may not be chill and easy to work with WILL put constraints on college plans. You can't keep one in a dorm, so you either have to live where you are and go to a local college, have someone at home you know will care for it until you're out of college, or plan on going to college in state and paying for off-campus housing that will allow a giant constrictor-- and that's not something a lot of teenagers starting college can afford (or convince their parents to afford).
Besides, after reading this person's past posts, they're barely able to keep BPs and seem to have no understanding of snake behavior. They recently had an accidental breeding that came from housing snakes they couldn't or didn't bother to sex properly together because they thought the snakes liked companionship and that cohabitation was perfectly fine. They also said they think handling is necessary to keep snakes "happy".
Not trying to bash someone for what's already been done, but those things indicate this person is nowhere NEAR being able to handle a giant constrictor. Mistaking signs of stress and thinking your BPs want to cuddle and go for walks in the park is just stressful for the snakes, but mistaking signs of stress and thinking a retic has an emotional attachment to you can land you in the hospital.
If Bindi Irwin came on here to talk about giant snakes, I wouldn't say 'no kid that age can handle big constrictors', but when someone who clearly isn't ready asks about it, yeah, people are going to try and scare them away from it for their own good and for the snake's too.
EDIT: I don't personally keep giants. I've been keeping snakes for over 15 years now and I'm not ready, and don't have the means to afford one right now. My next step is going to be one of the constrictors in the 7-10 ft. range. Keeping snakes isn't a race; you don't have to keep the biggest-baddest animal on the market to be good at snake-keeping and respected within the community.