"you can manually set the resolution to make text and objects appear larger on your screen," -Apple Support
There are different issues people have with their eyes so please abstain on defending Apple and telling people that are doing it wrong, in my case I have to use a combination of big fonts, Zoom and Text to speech (I won't waste my money on a 2k or 4k screen for my bad eyes but if somehow one would land on my desk I would for sure change the resolution )