Liberalism is taught in our schools. Heck I can give you examples from my childhood, so it can only be worse now. Plus it a way of rebelling against their parents. You seem to be forgetting the fact that as people age and obtain wisdom, they tend to become conservative.
For me, I never considered myself liberal, even when I was in high school and considered myself a Democrat. In college, "lib-er-al" became a curse word for me. My friends and I would make fun of liberals for their wacky clothes, tofu and antics. And believe me, I had no problem getting dates in college. Back then, "MASSPIRG" had a small presence on campus, funded out of student fees. I didn't think that much of it.
It wasn't until I began working though that I realized that The Democrat Party was full of lying liars. I was working for a firm on the landfill side of solid waste management, putting together closure plans for old landfills (dumps) throughout the Adirondack region. I saw some of the worst environmental time bombs at these dumps, and it was my job to remediate them. I was also project manager on the design end of new lined landfills to replace the ones that I was helping to close. One evening I went to a public hearing about the new mass burn WTE facility in Syracuse NY. Knowing what I knew, that technology would increase the design life of the facilities that I was designing by ten fold. One of the presenters at that meeting was from NYPIRG, and he was basically a paid liar. That was my wake-up call.
Then I bought a home and began paying real taxes. In NYS, property taxes are a big deal. In fact they over 25% of my monthly PITI payments. The little town were I lived had basically no services, yet represented a significant amount of my tax bill. So I became involved in local politics and found out just how badly the local politicians were lying. That town board was all Republican and one Democrat, so I learned that both parties were full of lying liars. It was then that I registered as a Conservative.
Now I'm smarter than most, but I still believe that people aren't as dumb as you think that they are. Anyone with an open mind, half a brain, and who turns off MSNBC-CNN long enough to do their own research will eventually come to the same conclusion that I have.