Eighteen year olds are liberals. Not until they have children of their own and mortgages to pay...businesses to run do they become Conservatives. By that time, this Republic will be extinct.
For once in your miserable life...get your head out your ass! PLEASE?? I BEG YOU!! You contrarian nutcase. 
Why are 18 year olds liberals, aside from wanting to grow up too fast? From a response to all the hormones of Puberty and being willing to say/think almost anything to get laid?
That's how you get skinny little know-nothings with heads full of communist propaganda running around hating on everyone, including themselves, burning down police stations and hiding behind umbrellas.
Might cut down on some of the juvie flash mobs of looters, too.
A significant part of that comes from all the brain addling crap they pick up on social media.
When movies carry warnings warning of depictions of (EGAD!!)
smoking! but the social media posts are using language beyond PG-13, maybe it is time to limit their exposure.
Don't give them access to the Communist propaganda.
Make 'em read, something relatively wholesome. (Get 'em a subscription to
Hustler, maybe./s)