sof davar
I think many Sephardim eat cholent- they just call it Chamin and its made slightly different.
I think the issue here is that some people might be coming from slightly more modern background while others do not. A rebbe I had R’ Carlebach (brother of the Rosh Yeshivah of Mir Yerushalayim) used to say that the minhag to eat chulent goes back to the time of the tzedukim who wouldn’t eat hot food on Shabbos. So we bedavka made a food that is hot. In those days the only way to do that was by every one putting there pots of whatever by the baker’s fire over Shabbos until the seudah. The easiest food to cook for such an extended time was chulent. Hence the minhag.
It’s true that there is no halacha requiring someone to eat chulent especially if he doesn’t like it. BUt its not far from the truth to say that there is a strong inyan to keep even the smallest minhagim of the klal.