I’ve been a blood donor for most of my adult life, and have donated about 30 liters. Where I’m at you get a token donation and a thanks for donating, but someone mentioned that in the US you get paid quite a lot depending on the quality and the blood type.
I have a fairly uncommon blood type (about 10% of the population) and a blood count of around 150.
So, how wealthy would I have been if I had donated my blood in the US instead?
In my area you get a gift for donating. Usually a T-Shirt, but often a T-Shirt and a movie ticket, or a $10 gift card or once I got an insulated lunch box. The movie ticket era was nice because you could donate blood with your significant other and then go to the movies together, and feel good about donating. A good but weird date every couple of months