People who demand constant internet connect when thy go out have a higher probability of having too much personal information on their phone. It's a difference in mindset or mentality.
Cell service is overrated. Given the amount of people in public that are either scrolling or on some form of a social media shows having data service is not as important as people think it is. I have a GrapheneOS phone for listening to music and if I want to check for public wi-fi for a specific task but most days I never connect online when I am out and I've never signed up for a cell data plan before.
Life can be happier when someone is out in public and can't check messages, that usually can wait anyways for a few hours, and they can enjoy the world around, not what's on a screen.