Stocks are safer. The stock market is understandably regulated, existing for a long time and does not have the high risks that you might encounter when investing in cryptocurrencies. At the same time, the profitability in the stock market can be significantly lower than in the cryptocurrency one.
For example, in 2020, the S&P 500 index (the index reflects the weighted average price of the shares of the 500 largest US companies) shows the growth in 18.4%. In the same year, Bitcoin returned 301% and Ethereum returned 464%.