The trick is to read something that's fictional and less dry. Fantasy would be an excellent choice. Sci Fi if you still enjoy things slightly more grounded in reality.
I dunno...distractions, too much commitment, feels indulgent,... ? Just got a book for my birthday and read the first 100 pages aloud in the car because my husband and son wanted to hear it. Now it's been on my coffee table for two weeks and I'm struggling to pick it back up.
It's not really indulgent to take some time for yourself. Maybe your also missing the right book to get you interested. What kind of story are you interested in?
When i was younger (before kids) i read a lot - mostly Stephen King and classics and it's still what i really like. Kids are grown, but i have a hard time saying, "I'm going to sit here for an hour and read." There's always something to do...bills, husband, animals, house, yard, etc. and when i veg I mostly turn to mindlessly browsing my phone because it's 2 minute chunks that you can put down anytime. After 15 years of working at the same job i just found out that my lunch break is 60 minutes instead of 30 - maybe I'll bring a book and try to use that time to read.
My method is very simple, just looking for people who sit and read in trains, cafés, etc., most people who do that tend to be people who like to read books.