Comment by tgsovlerkhgsel

Install uBlock Origin and don't whitelist any sites. The default filter lists break almost nothing, only once you start including the "annoyances" lists etc. do you start running into significant breakage.

Without an ad blocker, they will be exposed to such an amount of social engineering (ranging from dropshipping sites, to subscription scams, to scam shops that don't ship at all but steal your CC data, to fake sites for government services, to attempts to trick you into installing malware) that you can't expect them to resist it. If installing uBO seems hard, resisting this or cleaning up the consequences is harder.

The amount of "hey have you heard of this great new product I saw" <photo of a handwritten note of the content of a scam site> went down from weekly to near zero once I got a relative to use an ad blocking browser.