It is also worth noting that in these countries it is significantly less hassle and lower monetary costs to get an ID card than in the USA.

The US has no compulsory ID. Parents are not even required to register births; medical professionals are, though, and a lot of things become challenging without a birth certificate, so I imagine the vast majority of births are registered. It's only within the past few decades that children were registered with social security at birth, instead of later. My siblings and I were only registered when it became necessary to get a credit on my parents's taxes; my parents were registered when they began to seek employment.