To be honest I do not know what exactly the point from pushing someone to use something only for he/she to find later that it is not suitable for them before we think about pushing the adoption harder for online merchant we should think about how things will be for them after they decided to start using it, I remember someone posted before the online merchants that is accepting Bitcoin as payment and I decided to visit some of them to check what they are selling only to find that most of them removed Bitcoin as a way of payment and that exactly what will happen again.