I could like to get paid in crypto, however I think its still too early now which made it became impractical, like its not as easy to spend it as cash. Someday when we able to grocery with crypto (with no fiat number involved at all) then thats the time. I cant wait for the day able to travel with just btc.
For now split will be the best choice. Fiat use for living, then all the rest will be investment / reserve for future.

Knowledge is a must, Capital is just catalyst
You will build capital if you are knowledge enough, at least know how to build up relationships
It is hard to keep your capital without basic knowledge tho.
That`s for individual. For company I think its the other way around.