Bitcoin investment is just like a normal investment that when you start it initially, you take your time to grow, nurture and monitor it, with patient and discipline to make sure that the investment flourishes.
When you write a wall of text like this about 'BTC investment', you are giving people the wrong impression that BTC is similar to a ponzi/pyramid scheme that everyone should just buy, hold it, only to sell later for profit, and the cycle continues. BTC is a p2p electronic cash that is decentralized and censorship resistant, that is what BTC was created to be, and maybe that is what is worth discussing or writing a wall of text about, especially in this section of the forum.
BTC as an investment is secondary, and it is because BTC is volatile, there would probably be a time when BTC may not be as volatile as it is now, and it may not serve as a 'profitable' investment for many people anymore, but BTC would always be a currency, because that is what Satoshi created it to be.
I agree with your analogy about Bitcoin. Bitcoin was created as P2P electronic cash on the blockchain network and currency used when there are transactions on the blockchain network.
Because of its decentralized nature and the many people who agree with Satoshi regarding Bitcoin and the decentralized system, Bitcoin has been adopted and used to this day. With limited quantities, cheap transaction fees, fast transactions, it also attracts more and more interest because they want to use or take advantage of it. Because this demand is what causes BTC to rise in price, supply and demand. Over time, as prices continued to rise, many parties, especially early adopters who held a lot of bitcoin, began to invest because they saw the projected increase in value for the future until bitcoin was able to provide high profits with the nickname sage haven/digital gold asset. As you said, Bitcoin investment is a bonus. For people who understand Bitcoin and its system, they also know its cycles and uniqueness, therefore the risks about the volatilitily they carry can also be anticipated by holding.