Why people stick to a certain music / numbers as they grow old?

Well, as everybody, this is my opinion about why people (You, I & Everybody) stick to a certain kind of music / numbers as we grow old.

As a child or while being young, the mind is so adaptive that you can switch preferences at the speed of thought, all they have to do is wish. They listen to certain songs with huge passion for a while and when they begin to like some new songs, the old ones fade into oblivion. Not that they will live in oblivion forever, but just that they have to keep up with the trends, which is again kind of an obligation to the peer pressure, however as they grow, certain preferences set in, and people start having their own opinions regardless of what others around them think / say.

As they begin to get out of education and start looking for a job and get into one, the actual realities of life come in and people realize how much they actually enjoyed the school/college days and begin to think of those good old days. A part of it is remembering the things they have done (or experienced) and memories associated with it, of which Music is a part again. That is when they want (or try) to listen to that once liked music again and begin to appreciate how things have changed since they heard it the first time.

Usually, when young, elder people would always crib about the music that is being made and all that stuff and we wonder about why the elders aren;t very adaptive. In all probability, even they would have faced a similar situation with their elders when they were our age then. Now, as we begin to grow old, we also realise that we stick to certain kind of music / numbers due to the nostalgic nature of it. At the same time we also begin to explore the music that is older than even before we began in the first place. While growing there are a lot of nasty hormones that have to be used up and can be vented out by listening to music that will do it. Slow music cannot set off all the energy that the body has to spend during the formative years, however as we grow, the amount of energy that we can spend keeps reducing and also affects the kind of music that we listen to (usually soothing melodys) to be at peace.

I may be wrong, from what I have observed a lot of people that are into Rock (or heavy music) during youth do not sustain listening to the same kind of music. As always, there are always exceptions to nature (or rules). Some people listen to melodious music during their youth and some people still listen to rock or heavy music even as they grow old. Both kinds appreciate what ever they do at whatever age.