between bitcoin and oil have their respective advantages. but for me investing in both would be better. that way our funds will be safer and risks can be minimized. many are profiting from bitcoin, and it feels easy to get double the money when the bullrun occurs. but we must be careful because the risk is also high
Diversifying your portfolio is always a good idea but one reason why investments in oil isn't the brightest idea is simply because like mentioned in OP too - Electric cars are now being made and oil would be less and less potent in coming years.
I still agree that the stock market is a good option and one should not come with an all-in mindset in the crypto market because although very liquid and deep, we still have some bases uncovered and there is still manipulation of the price at times. You can see how a single person carried and pumped the whole market of dogecoin without actually investing much. He just creates hype through his social media handle and people buy the coins which shows the market is still being manipulated so risking everything in the crypto market is not the ideal choice.