D&D does have a daily living cost based on the characters’ backgrounds. Anything from wretched (inhumane conditions - 0 cost) or squalid (1 silver per day) up to wealthy (4 gold) or aristocratic (10gold minimum). But I don’t think anyone really keeps track in most campaigns.
Like all maps, this one needs a date. For example, Canada and Denmark now share a land border (Hans island)