Just to be clear - I don't mean that you should not use them, you should use cryptocurrencies but without being obsessed by the price, without all "I invested and I will be rich" thing.
people invest for getting rich, they don't invest in general for no reason or for charity (in most cases).
but I think you meant "they should invest without all "I invested and I will be rich fast/instantly"thing
charity is one thing, but helping some content creator who can give you extra materials if you help him is another. I think it's still not investing