The answer to this question is of course No because older people don't know how to buy and sell Bitcoin they don't know what is crypto so this is impossible, also some people think that crypto is haram but in real crypto is halal. that are 2 big reasons and some are too much poor so they cant buy BTC.
If you come from a Muslim country or from a Muslim family environment, maybe you will find people who think crypto is haram because their thinking is a little different from other people so they try to bring the concept of trust into crypto. Even though crypto itself has nothing to do with any belief, so anyone can use it and I think you are also starting to understand crypto because you don't think crypto is haram.
I don't think that's a very logical reason because over time crypto and Bitcoin users continue to increase in different parts of the world so you might also discover more about crypto and Bitcoin over time. You can also find out about this yourself through some very concrete news so that there is more mature enlightenment about crypto because parents who are not familiar with crypto and Bitcoin will not find it easier to believe because they also don't know how to use it.