Considering upgrading to Family

Replace almost every one of each different login forms - requiring her to go to the right web site, find and correctly fill in the username and password, and submit the form - with clicking the 1Password extension, starting to type name name of the site, then clicking Open & Fill. Not only is this easier, but almost completely eliminates the possibility of being phished.

What the Families plan brings is your ability as Organizer to recover the account if she somehow forgets the master password and cannot recover it herself, as a member to manage the shared vault(s) and more.

The up-front work of setting up her clients and browser extensions, handling the invitation(s), importing all existing credentials, updating all accounts to use long, random generated passwords, adding TOTP and/or passkeys where available, and drilling the correct use may be a challenge. Planning recovery and managing your Emergency Kits, redundancy, backups, and their security will be more work.

To answer your first question: yes, many of us have our technically challenged relatives as members of out Families plan. A good password manager and something like the Families plan make just about everything technical easier, better, and safer, however the biggest challenge is almost always consistency changing habits.