I see the parent thing. A couple of my friends have issues with their parents because they act like spoiled brats when their parents don't give them what they want, whether it's car access, time allowances, etc. I just see their outbursts at their parents to be completely immature and their separation from their families to be unhealthy. 17-18 year olds should definitely act independent and have the ability to make their own decisions, but their hormones sometimes cause them to fail to see that their parents still want the best for them, the same as it's always been, and in the examples I see, their parents are the reasonable ones.