That's a huge reason (among many) to start with 1. It's always easy to move to games with friendlier controls.
After getting hooked on the Souls franchise, I went back and played the first King's Field game. It handles like garbage that's on fire and I couldn't play more than half an hour.
But if I'd played it first, that wouldn't have been a problem.
Dark Souls 3 will spoil you for Dark Souls 1's engine. But Dark Souls 1 is the better game (not to mention the foundation that 3 is built on), so you should play it in the order that's going to frustrate you less.