Buying a BTC ETF like FBTC is an easy way to get price exposure. Yes, it works when you do not mind technicalities or direct ownership. But you are not actually buying Bitcoin. You are buying a financial product that tracks Bitcoin's price. You do not get real custody, cannot send BTC, cannot move it off the exchange. It is convenient, regulated, but your Bitcoin lives in someone else's vault, and you trust them to let you cash out.
It is fine for traditional investors, and for people who want zero hassle. Just remember, you are getting Wall Street's version of Bitcoin, not the real thing. If you want actual control and self-sovereignty, learn to use a wallet and buy real BTC. Otherwise, the ETF suffices to simple exposure and to the majority of late adopters.. Simply know what you are owning. It is not the initial vision of Bitcoin, yet it is the way of least resistance.