Yes, I'm sure every person in Mississippi has the same super expedient interaction as a HNer when they have to visit to get their ID documents. I bet you even live next door to the DMV so your travel time was negligible.

The point of the government doing it is that it has to be able to service those people who live maximally far from a DMV (say 60 minutes each way by car), who can't drive there, who have to weigh losing pay to take the time to travel there, who have below average intelligence, who are functionally illiterate (because Mississippi created A LOT of those before their recent education reforms), who "can't use technology", who forgot to bring whatever specific document qualifies for Real ID, etc.