In this case I'd consider Google Workspace. It costs, but it gives you ironclad control over the accounts, and your parents won't lose access to their accounts no matter what they do.
As a bonus, Workspace is sold by partners, so you contact actual humans if Google does anything weird.
Yeah I agree - this is the real comparison to AWS. You have to pay for AWS which is mostly a professional service (even if there are free aspects) vs Google services that are mostly all free. In my professional experience the support for Workspace has been excellent. Luckily I have never had to contact their support for my personal stuff.
As a bonus, Workspace is sold by partners, so you contact actual humans if Google does anything weird.