o7 Amerikkka
I actually donate about twice a week to help pay bills. I agree with people hearing about the practice of blood for money and saying "that doesn't sound healthy.". I actually feel awful for 24 hours or more post donation.
It's also really cool you don't get saline anymore because the US is out of it. Just a Powerade and goldfish so you don't pass out driving home
A lot of people do that in the US as well, most people I know have donated blood a couple times for no pay. It's simpler to donate blood than plasma. Not many people would donate plasma for free so they pay for it, but it is kind of ridiculous that people are desperate to sell their vital fluids.