Parents in the past did not know much about investment, so they preferred to save their money even though it would be eroded by inflation which would lose its value over time. The only option I often hear is gold and that is only done by a small number of people.
Now investment should be something that is no longer foreign to parents, so they can learn it and teach it to their children. Moreover, in this era, it is not difficult to find information amidst massive digital developments.
If you pay attention people investment in the past was gold and it happened from generation to generation until our generation knows the term bitcoin. I see parents and siblings have an investment pattern in gold and they tend to save gold rather than save. Maybe there weren't many investment models in the past, but people didn't save money in fiat but bought land, rice fields or gardens.
I saw this in our parents' previous generation because they also realized that fiat was not profitable to save. Even if they had savings, it was no more than a small percentage of their wealth and the rest they placed in some of the ones I mentioned above.