You'll have to ask PG & co. for specific reasons, but among the ones I remember being told, having to deal with slow and tyrannical phone carriers and/or with r

You'll have to ask PG & co. for specific reasons, but among the ones I remember being told, having to deal with slow and tyrannical phone carriers and/or with restaurants, which tend to be far from cutting edge when it comes to picking up new tech, even something apparently so straightforward and revenue generating.