I personally do not believe anything is in the way of Bitcoin adoption. As far as adoption goes, Bitcoin is inevitable. There is no stopping a better technology and a better monetary system of the future.

The only problem I see is the rate of adoption. It is all happening a bit too slow perhaps, but then again, we have nothing to compare it to other than fiat. And even then, it is not the same as global money adoption, since that has never existed before in modern times.

It will definitely break through. Might take a while.