I heard this reported somewhere yesterday (not in the DM) and as I understood it it is to do with pushchairs, more than babies. And NOTHING to do wtih breatfeeding .
They said they were fed up of mothers and their huuuge pushcahirs taking up room - the room that another paying customer could use, then factor in the space a highchair takes,....... they were losing custom, as only half the cafe was full, of all these pushchairs, but the occupants of the pushchairs weren't paying.
Fair rnough, I say, they have a point and can do what they want. If you don't like it just go somewhre else .
My DC are now 7 and 9, and I would LOVE to go somethere child free! I Also remember being asked by a cafe owner to fold up my pushchair as it took up too much room. Fair enough.
But please don't turn it into a breatfeeding in public debate.