What you wrote here is like small concept of financial literacy which includes cryptocurrency trading. Holding lifetime is not way to trade colatile assets like bitcoin,penny stocks and other volatile financial assets. There different type of profitable strategies that can reverse the losses to winnings. Average price is key if trader wants to take advantage of price action which makes volatile up/down movements on market depth.
Not all of us are traders and not all of us look at Bitcoin as tradable asset. Some of us earned it. Some of us got it as a gift from someone. Some got it from faucets or mined it and will never trade it. Some of us don't like and don't trust exchanges. Hodling was proven to work and is a viable choice for Bitcoin owners.