Bitcoin is already accepted world wide, it just isn't accepted everywhere. You can't force adoption. Governments could force it by making it legal tender, but that is unlikely to happen and anyway people don't like when things are forced on them. Education is the key for widening acceptance, but also it has to be easy to accept and use it.
Behind every company there is a person, or several people, and if you convince them, then it will be possible for them to accept bitcoin. It takes courage and the knowledge of what bitcoin is. And they not treated by the state, that will be the most difficult part. Apart from that, it has to be easy to pay, so easy like paypal, for example. Then many more people would use it. Paypal is free for the buyer, but there are also fees. Bitcoin transaction fees dont be more expensive like them. Simply it is these things that they needed to make it easier.
There are people and groups that work on on-boarding companies to Bitcoin at least for accepting, but this is happening locally or regionally. You won't hear about most of those online, they are busy doing the work!