Yes, I understand what you're saying about years ago. And, I'm sure a lot of people sold for meager gains (compared to what the future holds) and they now regret they sold.
Yes, I'm pretty good with a PC and iPhone, so it's not like I need help turning on the bathroom light!
My plan is to buy the number of FBTC shares that equal the current (July, 2025) value of one Bitcoin (1BTC). At this time of acquiring my first FBTC in July, 2025 the price of one Bitcoin (1BTC) is about $118,000. Therefore, 1,200 shares of FBTC at a share price of $100 to $104/share equals $100,000 to $125,000; the July, 2025 price for one Bitcoin (1BTC). Ultimately, I'd like to buy enough FBTC shares equal to the current value of 1½ BTCs and HODL...
It comes town to whatever you're most comfortable with.
You own similar financial instruments. You said it yourself that you have money with multiple companies, so it looks like you were asking a rhetorical question. Is an ETF a good way to invest in bitcoin? In your case it certainly is because you trust companies that issue shares, you used to own other financial products, you're new to self custody, you are probably an older guy, able to invest a lot of money but scared of being hacked or losing funds by making stupid mistakes.
For me it's a bad idea, but I used to hold bitcoin back when there were no relatively safe custodial solutions. Right now you can get an insured company with a trillion $ in assets to hold your BTC so, why not?