Many more merchants might be willing to give Bitcoin a try, if they (at least at first) can have it automatically converted to fiat, and don't have to deal with Bitcoin technicalities (wallet apps, protecting/storing/backing up their coins, etc). Botherhing them with wallet apps, transactions, daily rates, and whatnot, can actually scare more merchants away than getting them aboard (with this cool cafe and shop owner as a positive but rare exception).
There are plenty of very easy payment providers through which even the most reluctant, non-tech-savvy merchant can easily accept Bitcoin, free of charge, free of risk, free of hassle.
Don't get me wrong, of course I'm all pro merchants directly accepting (and keeping) bitcoins without any 3rd party middle men or conversion to fiat. But in all honesty, that's not realistic as of yet in most situations.
Yes I understand all this. I've said to them if you find you're collecting too many bitcoins, then I'll set them up with Bitpay so they can convert it straight into pounds.