Baby steps! We gave a good example of NFC payment being stuck at a standstill before booming to new heights because of London transport. Same can happen with Bitcoin if the technology makes it more common for everyday use. Merchants will follow the trend as they have done in the past. But even if they don't, you can still pay with Bitcoin through our Plutus Debit Card, which is why we built Plutus to help the community spend their Bitcoin at any merchant they want instead of having to wait for widespread merchant adoption.
They may notice that there is an entire profit industry built on their reluctance to accept it, and that they are greatly reducing their margins. Merchants usually only respond to market pressure and cold hard stats. The main point is that users shouldn't have to wait for merchants to wake up and engage them.