I don't know Douglas Boneparth, but holding Bitcoins in a hardware wallet that is not connected to the internet is the best way. It's up to people where they want to buy Bitcoins, the most important thing is that after the purchase process is complete, it is immediately transferred to a hardware wallet. This is more of a safe way and full control.
For other matters that are still in the corridor of Bitcoin investment, I follow the best methods of those who have mentioned in their posts on this topic.