Yes, the “d” is lowercase on purpose. The creator of the show decided that since the show is about working-class ladies in a canteen, they shouldn’t be referred to with a capital “D”. Taking place in a canteen (cafeteria) at a fictional factory in England. Bren (played by creator Victoria Woods), Tony the manager, Dolly, & the rest of the cast deal with their personal lives while slinging food to the workers. Filled with British slang & references that American audiences may miss, it’s still a hilarious look at the working class in England (of which we are very similar to here in the states).
Someone posted both seasons online for all to see, here is the first episode “Monday”….