You may find 34 psi to create a slightly bumpier, harsher ride than you’d like. On my Corolla 30-32 psi is what works best for me. As mentioned above best to use the info posted on the door jam. Some cars spec different tire pressures fore and aft.
It’s a good question what a person would do if they couldn’t work the inflation gadget. Like if they had a disability. I’m guessing those folks just ask the station attendant to if they could fill the tires for them, which most attendant’s would gladly do. Another idea, one of my friends who isn’t diabled still can’t seem to work the tire inflation gadget so when they come to visit me one of the tasks is to take their car to the gas station and I inflate the tires myself. Happy to do it for them. Takes like 5 minutes, not a big chore.