Yes.
Anecdote: I was doing my periodic visit with my grandmother, where I tend to any overdue computer/software maintenance, resolve any questions she has, install new things if needed (i.e. someone got her a printer which she likes to use for printing photos, but it was still in the box.)
As we were going through some things, she didn't know her password for everything; she had a notebook, but it wasn't organized enough. Eventually we figured out or reset each password as needed. (She only has a few total!)
Part of me wanted to utilize a password manager; after all we could use some proper long, randomly generated ones! But I was there on the fence of... what happens when she's stuck and I'm not sitting next to her to help?
To be sure, I have about a billion online accounts. I use unique email addresses and passwords (and a password manager) so I don't really hesitate to create accounts that aren't asking me for any real information about me. And along with that, I come upon the edge cases where if you're using Firefox for Android and Bitwarden, the web site some how goes out of its way to ensure that I will end up having to type in a super complex password (or close my browser tab and walk away). My grandmother almost certainly won't hit those same edges cases. She's got email and one social media account and that's just about it. And she'll need to write down that one mega password for the password manager, and learn some new things.
So I'm not sure if it's right for her. Definitely a consideration, though, and to your point, sometimes I get angry and wish there were consequences for the companies that work so hard to break things like password managers on their web sites and in their software!