It still posits a legitimate question. Do people get hiccups as often?

Perhaps people do, but I used to get them much more often as a kid, and almost not at all for the past 10-20 years (1-2 incidents).

Maybe it's more prominent based on level of physical activity?

Or maybe people have different chances of getting the hiccups depending on age (e.g. more often young)?

Perhaps this (getting less hiccups over time) is just true for me and the author (and other random people, and not some majority). Again a question would be, why is it so?

There is not stupid question, but there are stupid kneejerk refusal to ponder a case at all...