

I have my 80+ year old mom using Bitwarden. She has some issues creating new logins but for the most part it is working great on her desktop and her iPhone.
I have her pointed at my own Vaultwarden server and I know her master password if I really need to get in.
When you merge two sorted lists, you only have to compare the first element of each, since you can trust that all of the other elements are bigger. All the steps before that are there to make sure that is true.