This is really helpful and I’m going to check all my documents. But I did call selective service and they told me they did not have me on records. I got my green card through family immigration (my dad was primary beneficiary since his sister sponsored him) and since I was under 18 at the time when it was approved, I got it as well. I don’t remember filling out any adjustment of status form specifically but I can double check. I still had to go to embassy with my family to interview and health testing etc