However, the simple fact that they are accepting it would probably make some people adopt it. That was the case for me, I got into bitcoin when I noticed that a paid traffic exchange that I used was accepting it. It was like, Bitcoin? what is this? then I researched and ended using it.
Same can happen with this (I hope)
That can work with a minority of believers.
It really needs to get to a point where it's a no brainer for a consumer for it to be widely adopted. It also needs to be demonstrably better than existing options to nudge people into making the change.
Discounts would easily do it but margins are usually too tight for that to be sustainable or offer a big enough discount for a casual user to bother. 1-3% isn't going to be enough.
I guess brighter minds than mine will come up with something.