"You don't go broke buying IBM", until then, you do.
I don't subscribe to any strategy just because others do - it has to be a bit more meaningful than that. I prefer crypto as a hedge. Its one of the only asset classes that hasn't been ring-fenced by governments.
It's not a "do this and nothing else" strategy though. Crypto should not be your only investment. You should own land, precious metals, some stocks, some peer to peer lending notes, etc. The point is to spread your wealth around to many different things to better protect it and limit your risk. I have both crypto and PM's along with a TON of other hedges.
5% is a pretty small amount too.