To my mind, Bitcoin Spot ETFs are a good way for beginners to buy Bitcoins but if they want to HODL bitcoins, then I suggest them to learn more about Bitcoin over time and focus on hardware wallet and how to create a cold wallet and store their bitcoins safely.
This would be ideal for someone who has already purchased shares or ETFs and finds bitcoin complicated. But over time, nothing is safer than managing bitcoins with your private keys.
That's what I said, it's okay and maybe recommended for beginners to buy shares of Bitcoin ETFs because setting up a wallet and securing seed phrases is a little bit complicated process and requires some experience, that's why I think that it's better for them to buy shares of ETFs if they want to don't waste time and invest immediately in Bitcoins and after that I recommend them to learn how to use exchanges, including CEX and DEX and then they have to learn how to create a Bitcoin wallet, how to buy Bitcoin on an exchange and safely withdraw to their wallet address. They also have to learn the difference between Legacy, SegWit and LN addresses and some other type of addresses too or they'll make mistakes and withdraw Bitcoin to the wrong network.