Good for you and your parents, but it wasn't common until 1986 when Reagan's new tax code suddenly required social security numbers for dependents. It was 1987 when they started rolling it out as part of the birth at the hospital.

Your lol no tone implies I don't remember my own teen years.

Yeah, I was born in 80 and have had it since birth.

I mean, for sure you could. In my country would didn't get an ID card/number until you needed to get a job or travel by plane. I got mine when I was 12. But nowadays babies always get their I'd card after birth.