> Stocks are very volatile currently. Not only since Iran. To me it seems since the financial crisis 2008 investors don't enjoy stocks as before.

These returns do not qualify as “enjoying stocks”?

https://investor.vanguard.com/investment-products/etfs/profi...

The returns are higher than before 2008, the previous 15 years are unprecedented.

https://www.macrotrends.net/2526/sp-500-historical-annual-re...