Mostly cultural, but a lot of the vegetables we seem to prefer for some reason (like broccoli, asparagus, spinach, Brussels sprouts) are a bit on the "funky" side (not necessarily bad, but stronger), and children tend to have stronger senses of smell and taste than adults. I think that might have something to do with it. What's just more flavorful to us might be overpowering to kids. Like with "supertasters". Compare with something like bok choy.
Apparently also Brussels specifically have been continually bred to be tastier, so the ones my parents hated in the 60s were objectively less palatable than current ones. Eggplant is another one, about 100 years ago you had to soak them in salt to remove bitter flavor before cooking but now they're ready to rock and roll
Mostly cultural, but a lot of the vegetables we seem to prefer for some reason (like broccoli, asparagus, spinach, Brussels sprouts) are a bit on the "funky" side (not necessarily bad, but stronger), and children tend to have stronger senses of smell and taste than adults. I think that might have something to do with it. What's just more flavorful to us might be overpowering to kids. Like with "supertasters". Compare with something like bok choy.
Apparently also Brussels specifically have been continually bred to be tastier, so the ones my parents hated in the 60s were objectively less palatable than current ones. Eggplant is another one, about 100 years ago you had to soak them in salt to remove bitter flavor before cooking but now they're ready to rock and roll