Personally I can say that knowledge in cryptocurrencies isn't very beneficial because ask yourself, why is bitcoin popular? And then compare possiblities of bitcoin to Monero. Everyone will tell you that bitcoin is decentralized, anonymous, etc... But then there is a monero. Logically, Monero should be the number one cryptocurrency and not bitcoin because monero is decentralized where every user is anonymous by default. Then there is an ethereum that offers a lot of features unlikely to Bitcoin but still bitcoin is number one currency. I can't actually understand it. I don't say that bitcoin is bad, no, it's great but I used to think that Monero and Ethereum had potential to surpass bitcoin. That's why I think that bitcoin hodling is more important than bitcoin knowledge.
In theory, ETH or XMR both show that they have many superior features than bitcoin, but in reality everything will be completely different from theory. There is no reason for anyone to choose bitcoin if it proves to be inferior to the other two coins or any other altcoin that exists in the market. Maybe a few people will be confused but there's no way the whole world can be confused about it.
Regarding holding and knowledge, I just want to know if you don't have knowledge, how can you hold bitcoin? If you know nothing about bitcoin: how it works, its fluctuations, and wallets to store it...if you don't know these things, how can you confidently hold bitcoin? They say knowledge is power, meaning when you have knowledge about it, you will understand it clearly and have faith in it. The same thing happens with bitcoin, why many people can hold it for many years to gain thousands of percent profits, but many people cannot hold it even when buying at low prices? Everything is decided by faith, and to have faith, you need to understand it clearly.