Yes holding is waste so long times even a few years, alot of newbies investor was decide to hold crypto in the beginning of 2018 without any risk management, so they getting loss much money. So trading or holding should be with risk management.
Holding becomes waste of time only when one does not set his investment purpose right. Most people that sees holding as waste of time are people that invested with the mind of reaping profit in a short period of time which the investor would have just opted in for market trading.
Holding is for investors that are very rich and can afford to overlook their investment for a very long period of time and yet still live comfortably in their world. Personally, I see any investment one expect to reap its profit in 2 years as an non-serious investment.