Investing in crypto is not for all, you need good grasp on how this market works. This is why for ordinary people, they won't touch this market. For them, tangible assets are preferrable to invest as they can see it.
Of course, ordinary people prefer physical assets. They don't understand digital assets, we can understand if they don't have an intention to join crypto investment. Even, the people who know digital assets, there are some of them still worried investing in crypto. They argue crypto won't last a long time and it is too risky assets. Well, there will be always reasons for people who ignore crypto. However, crypto always proves that their bad assumption isn't true. Crypto already survived more than 10 years and Bitcoin showed its great improvement as the main coin in crypto industry.
In the aspect of choice of investment, You're right though cause their are some people who still believe in physical investment than digital ones, but one thing I believe is that the world is evolving very fast and it's gone digital and as the latest trend everything including investment is now switching to that dimension, that's why Cryptocurrency (especialy Bitcoin) is currently the latest trend for investors.
It's not like other assets are not worth it or are useless but I think that as things are evolving, joining the latest trends is a very good option, moreover Bitcoin has proved over time to be a safer and one of the best assets for investment, all an investor just need is to take their time and study it, understand the trend before jumping into it then they'll be good to go.
Surviving more than 10 years is enough prove for investors to see it's potential for the future, well it's not for everyone especialy those who doesn't understand it.