when i was a kid i never put sugar on rice krispies at home, but sometimes did at my grandparents' house.
omg i just realized i did sometimes put it on cheerios at home though when i was a kid, crikey! i would never even think about adding sugar to breakfast now, lol
I did it several times as kid. I also did the same with Corn Flakes until realizing there is heaven in Frosted Flakes.
I don't really eat Rice Krispies as an adult now, not even the bars. Way too sugary for my tastes. I typically go for Frosted Flakes or Cocoa Pebbles. Maybe Capn Crunch & Corn Pops.
To be honest, I didn't even know this was a thing. I never did.
Sometimes now that I'm older, I mold the Krispies into circles, and put a Swedish fish on top of it. Then I wrap green Fruit Roll-Ups or Fruit by the Foot around it, and make dessert sushi.
I never added sugar and I never knew people did that until I was like 15 and my friend told me about it. I'm not really a fan of adding sugar to stuff since so much food out there already has sooooo much sugar in it.
i never enjoyed cereal in general as a kid! it just didn't ~do~ it for me, so if anything i had a chocolately sugary variant. ironically enough today it's one of my ultimate safe foods, and one of the only high-carb things that are. but rice krispies, i wouldn't put sugar on them because sugar isn't safe to me but i'd totally douse it in canderel sweetner