Yeah, people should be more cautious with their info. The same can be said about a person's mobile phone service provider. Also the all those store loyalty cards etc.
With everything considered, it's shocking how some people consider encrypted emails like Protonmail to be an overkill. Or that they are too small of a target to be worth looking into. Fact is the net of the mass data trawlers are collecting vast data even on small fries and I am not cool with that. Call me old fashioned but I find that to be creepy AF!