Actually, most parents do invest their money instead of save it in banks.
But, they choose the safe investment that the gain can't hedge against school and medical inflation, usually a country has 4% inflation rate, but the school and medical inflation rate are around 10%-15%.
These parents choose to invest their money in time deposit (5% APY), ETFs (7% APY), gold (8%) or stock (depend on the stock). The thing is, most stock didn't bring a good amount return for long term, moreover these parents mostly choose investment that can't hedge against inflation, that's why the poor stay poor.
Currently,the depreciation of faits currency is relatively inevitable.
Most parents are likely aware of this change and some of them no longer store their money in the bank,but they'll rather invest in bitcoin,real estates,stocks exchanges,e.t.cThe feeling the economy is giving is that we should invest for the future as much as possible,you can save as well too.
Its advisable to invest as more as you save,but let's also normalize to Work with a financial professional with the expertise and experience to keep you on track.