Perhaps most people didn't know it yet on how to secure their money when/during a global recession. Only few people have the knowledge of securing their money by investing lands and metals in the past but for now it's different since we have bitcoin already. But it's not for everyone when talking about investment about land and metals but thankfully we have bitcoin today and poor people have the chance to invest their safe money, although the problem may rise due to needs and wants.
It is easier for people to invest into gold because they know in their brain that it will always recover and it's a valuable thing and its scarce so it can't be printed like money. The moment they eventually realize that bitcoin is similar and people can't make money from it like fiat, and you could always trust it to get back, and if you could end up with a situation where you can even spend it, then they will realize how amazing it is.
So far too many people considered it as get rich quick type of investment and didn't trust the credibility of it, and if they could end up with something better in the long run like gold, they would invest a lot more into it.