Well, if you MEMORIZE all the songs, you dont need that 10 lbs, 5-inch thick, 3-ring binder of music sheets, nor a tablet, nor any foot pedals...
LOL.
Not everyone can do it (memorize), but if you can play 2 hrs of songs from memory, I think you would be in great shape in terms of your playing skill, as well as keeping your mind agile...which as we get older, our age is working against us...(alzheimer's, dementia, etc)
So why not try to prevent these things from taking over, but in a fun way with music?
I remember that "use it or lose it" used to be a workout/physical-exercise mantra, but it works with your neurological pathways too, and keeps all the music fresh at the top of your mind....
But, do what every works for you. It's all good to me.