Depending on where you are, it also takes some effort and coordination to ensure you register to vote, verify you are still registered by the deadline, and to ensure you understand what will be on the ballot before you show up and have the necessary documents when you get there. I do live in a place the Heritage Foundation considers high in “election integrity”, so they made a lot of barriers to vote where I am, and I could theoretically get why busy people have a hard time prioritizing it.