My state (NH) has no early voting, and absentee/mail-in voting is only allowed for a few specific reasons. (in 2020, COVID was an acceptable reason, but it is not expected to be in future elections).
I think everyone needs to understand what they're voting for, which requires much more effort than habit, so I'm not sure that's a good goal (unless that understanding is part of the habit, of course, which isn't what I've seen).
Looking back, not only did I lack interest, but I was easily swayed by politicians, promising things that would never happen, and news, providing incomplete perspectives and half truths. I was young, living with my parents, and completely lacked perspective on the machine of the world. If I were to go back, I would stop myself from voting that young, because it was completely hollow. From what I've seen, younger people these days don't seem to be much different. Easiest proof being that they're shocked that they're not getting the campaign promises that they voted for.