Because between us and they have gap about generation 
In fact, older people always have a lot of worries and I do not think they are interested in investing in Crypto because they are afraid because Crypto is so new and it's like a virtual thing, they can not see it and can not handle it. In addition, Bitcoin have a huge risk and it is not valued by any model and fears that this is a psychological game.
I have met many old people and I told them about Bitcoin, as a result I was scolded for daring to believe what the internet said, oh my gods @@
bitcoin is a good investment if we know what bitcoin really is. but many parents forbid us to make this investment, but for me it's fine, because we already know what bitcoin really is. and bitcoin has nothing to do with psychology hehe. if we want to make this investment, the thing we have to do is be patient and neither do we have to tell anyone In fact, older people always have a lot of worries and I do not think they are interested in investing in Crypto because they are afraid because Crypto is so new and it's like a virtual thing, they can not see it and can not handle it. In addition, Bitcoin have a huge risk and it is not valued by any model and fears that this is a psychological game.
I have met many old people and I told them about Bitcoin, as a result I was scolded for daring to believe what the internet said, oh my gods @@