Fwiw, curry roux doesn't exactly "help curry be thick and not watery", it's ready made blocks of all the things the sauce itself needs (apart from water), so you don't have to spend time making it from scratch. You wouldn't make curry from scratch and then add roux to it to thicken it up.
Yeah, it's not long since I read a couple of different studies that showed abstinence only states had significantly higher rates of teen pregnancy.
Here's an example: https://pmc.ncbi.nlm.nih.gov/articles/PMC3194801/