Why Is the Flower Shop Open?

There was no rhyme or reason to why certain businesses were open on a Sunday in France. I thought maybe only bakeries, food stores and souvenir shops were allowed to open for business. But most food stores remained closed, half the souvenir shops in Etretat were closed, one clothing store was open too and this looked like the only town we had been to that didn't have a bakery. And oddly enough late on a Sunday afternoon this flower shop was wide open.