That also makes a lot of sense (my other hypothesis, which doesn't necessarily contradict, is that I wasn't introduced to much soda growing up). This could also explain a personal preference for salty food (taste and habit) that other people I've met don't seem to share.

I'm not sure about that. My mother was from a developing country and only tried soda for the first time when she tried it in a developed country as an adult, and fell in love with it immediately. She doesn't drink sugary sodas anymore but still loves sparkling water, champagne, and anything bubbly.