Chances are most of us here are pretty tech-savvy and can spot phishing scams a mile off, but the older generation who haven’t grown up with the internet are now having to use it and are an easy target for scammers. Check in with your family and friends to make sure Granddad isn’t sending money to someone claiming to be Amazon, Grandma isn’t using “passw0rd” for every account, and the couple next door aren’t sharing their names, address, and bank details on Facebook!
I think you’ve just got tell them to be suspicious of everything, and to not be afraid of forwarding something dodgy-looking to you to check.
While I recommend a proper password manager to people my age I know that’s too complex for some people, and using the built-in browser one is still way better than nothing!