Too stupid to know how to buy a stamp= too stupid to vote. Stay home.
When I was in college, I didn’t know about absentee voting. I drove 200 miles each way to vote (for Ronald Reagan)
My millennial kids have been getting absentee when they need and are all deciding who to vote for. (all are conservative so it’s an easy decision)
When I was in college, voting age was 21. And absentee voting was frowned upon by local government because students could vote for property tax bills.
So I never voted in a presidential election until I was out of college.
The college town I lived in then was one of the most conservative in Texas. Still is.