My reading of A Christmas Carol this year included noting this description of Scrooge’s travels with the Ghost of Christmas Present to observe the Cratchit family:

"There are some upon this earth of yours," returned the Spirit, "who lay claim to know us, and who do their deeds of passion, pride, ill-will, hatred, envy, bigotry, and selfishness in our name, who are as strange to us, and all our kith and kin, as if they had never lived. Remember that, and charge their doings on themselves, not us." Scrooge promised that he would; and they went on, invisible, as they had been before, into the suburbs of the town. It was a remarkable quality of the Ghost (which Scrooge had observed at the baker's), that, notwithstanding his gigantic size, he could accommodate himself to any place with ease; and that he stood beneath a low roof quite as gracefully and like a supernatural creature as it was possible he could have done in any lofty hall. And perhaps it was the pleasure the good Spirit had in showing off this power of his, or else it was his own kind, generous, hearty nature, and his sympathy with all poor men, that led him straight to Scrooge's clerk's; for there he went, and took Scrooge with him, holding to his robe; and, on the threshold of the door, the Spirit smiled, and stopped to bless Bob Cratchit's dwelling with the sprinklings of his torch. Think of that! Bob had but fifteen "Bob" a week himself; he pocketed on Saturdays but fifteen copies of his Christian name; and yet the Ghost of Christmas Present blessed his four-roomed house!
Cratchit is the underpaid clerk who works in the city with a wealthy employer but lives in a small home (with four rooms) outside the city. A domestic scene follows as the family gathers around the modest table and food.
Scrooge, in contrast, lives and works in the city. He is about work and wealth. He looks out for himself and has little time for others, whether his employee or his former business partner.
London at the time of the writing of A Christmas Carol had nearly two million residents and had a lot of industrial activity. It had some suburbs – Clapham, for example was several miles from the center of the city and was inhabited by William Wilberforce and his associates – but it was a dense and growing city. The Cratchit family may not have been able to afford to live in London or they needed enough room for their family.
If A Christmas Carol helped create Christmas in the United States since its publishing, might it also have fit with Americans’ liking for suburbs for cities? Even as the tale involves redemption for Scrooge, he lives in the city while the typical and kind family in the story lives in a suburban home. And we know how much Americans like their suburban single-family homes.