Shares as it is safer, in terms of survivability. Some tokens also have a promising future. For example, bitcoin is unlikely to die until it finishes the program. The Ethereum is aiming to replace SWIFT. And many other tokens.
In my opinion, stock investment or altcoin is a good choice. Both have their own advantages and risks. Potential losses will always be there. What we must develop is the knowledge to manage both well. Our knowledge must be constantly updated to produce the right decision.