By revolution I mean Circle, not A dramatic change.

I was reading a quote in the ‘sig’ of someone on sciforums that said something like "if your young and not liberal, you don’t have a heart, and if your old and not conservative, then you don’t have a brain".

Is the political opinion of a person really determined by their age, and the trends of their childhood? One grows up, wanting change, and for life to be the way they want it. Time passes, and in some since, this happens. When they get old, one someone 'gets' the political changes that they wanted. But surprise surprise, the little now-old-liberal's sons and daughters now want change in society. Fearing change, the old man becomes conservative, wanting to preserve the political interests of his generation.

Does this happen in our society? What do you think about it?