We have often seen youngsters are more open towards crypto and adapting it wherein the older generation like the ones who are in their 40s and above are reluctant towards crypto and often term it as bubble or scam though they know that it's not a scam. Is it out of jealousy that they couldn't onboard into crypto at the right time hence bad mouthing it or else just that they are not ready to accept something knew as kids are becoming millionaire with crypto which was never case with any other asset hence this looks too good to be true for them.
Note: I am not saying everyone above 40 years are reluctant but it's just my experience and it might be related to certain geographical location or certain set of people. I am not generalizing it but share my experience.
The younger generation embraces cryptocurrencies because they are more technologically inclined. They are more exposed to innovation in the financial ecosystem. Many of the older generation are not even computer literate so they don't have basic knowledge about cyberspace this might be the reason why many of them don't pay attention to cryptocurrencies. Due to their ignorance about the crypto space many of them have also been victims of scams that will scare them from dealing in cryptocurrencies.
Therefore I don't think it is because of jealousy that many of them are not joining the sector, it is more because of ignorance. If they have better knowledge about Bitcoin they would invest in the sector, after all, everybody wants to make money.
Now that the SEC finally approved Spot Bitcoin ETFs, the narrative will change. Older people on average have a lot more money than younger people. Blackrock, Fidelity & others will be shilling Bitcoin hard to these investors, we will probably find that over the coming years, older people have exposure to Bitcoin in their investment portfolios due to Spot ETF products.
The approval of Spot ETF is a big boost to Bitcoin awareness and adoption. Many of these elderly people who are scared of keeping their keys and passwords will be comfortable investing in centralized platforms. Others who see self-custody as a complicated process will also find the ETF approval helpful.