My biggest prpblem would be password manage. I mostly use one password for most of my operatiom and don't update it regularly. For my private key i preface to go the traditional way by writing and keeping it some where safe
This is a reasonable thought process. Also, you can use two password managers - one password - to store passwords that are not risky. Ie for regular accounts and such that will not cause you to lose lot of money. Using a file based offline password manager like Keepass to store sensitive passwords and keys.