I was never specifically told to be afraid of tetanus either, but that may be because all kids got mandatory tetanus vaccines where I grew up. I still have a faded scar on my arm - I think it was the three vaccines in one shot thing, nowadays it doesn't leave a scar afaik, but back then you got a star-shaped mark and a minor swelling for a few weeks. And when pushing around other kids, somebody would always go "not in the vaccine!" when they caught a stray, painful punch in that part of the arm.

I only renewed it in my mid-20s after stepping straight onto a long rusty nail. I also decided to get some other vaccines filled in back then, like TBE.

edit: I actually looked it up and the scar was from a tubercolosis vaccine, tetanus et al didn't leave any marks