I'd suggest a better reason for young people to be more liberal is that the poisonous ideology of conservatism is less likely to have infected them yet.
The only poisonous idealogy is the one that thinks it's OK to take from one group that produces and to give it to a group that doesn't produce.
To think you are entitled to anything is a joke. You are only entitled to what you can earn through work. There is nothing in this country holding anyone back from achieving prosperity other than liberal policies put in place to hold minorities down and beholden to the government. Minorities, mainly black have been set up to fail by those that promised to make them prosper.
Here's money for you to pop out a kid. Here's some money so you can raise your kid and not work. Here's some "free" healthcare so you can take your kid to the doctor and not have to pay anything. Meanwhile, the people that work, buy food for their families, buy health insurance, pay doctors, ect, can't afford to do more because they shoulder the burden of the welfare class created by liberal policy.
I'm one of those that pays more than my fair share of taxes, yet I make to much money to get any kind of assistance or aid to help with my disabled child, thus even though I make a comparably good salary, I don't have the discretionary income that a ghetto baby factory has because I choose to support my family by working.