I'll take your $16/wk for vaping costs, I don't have any hard data but I think that's probably a bit low.
$5 for coffee 5 times a week, that's $25/wk.
Looking around me, its hard to get a meal delivered with a food delivery service for less than $18. Making a meal at home, even a frozen pre-cooked dinner, is usually like $5 or less, so we'll say an additional $13 meal 4x a week so $52/wk.
52 + 25 + 16 * 4 weeks in a month is $372/mo. Over $4,400/yr, on just eating out/delivery, one coffee 5 times a week, and vaping. And somehow I doubt its really just 5 coffees a week, its probably not just $13 additional cost per meal only 4 times a week, I doubt a vaping habit is really only $16/wk.
Is an extra $4,400/yr in their budget a big deal to the people in question?