I was just objecting to the typical phrase "it costs just as much as a coffee" making it sound like nothing worth thinking about. This stuff adds up to real money over time. I have explained to several people that their Starbucks habit costs more than their car insurance (and also may give them diabetes depending on the drink). It's even worse with Doordash or Uber.
Yeah it's an interesting argument. Also, coffees (especially Starbucks coffees) rarely cost $3 anymore. Maybe if you just get a regular brewed coffee but when I think of Starbucks I don't think of their coffees on tap, I think of their $7+ lattes or frapps that are less coffee and more dessert. Anyway, I digress.
Point being, a small expense once is one small expense. A small expense daily can easily become a huge expense.
That being said, I'm not gonna be prescriptive and say that no one should get their daily coffee. But they need to be aware what it costs them. If they know the cost and are ok with it then by all means, order away! I hope your friends are at least now making a conscious choice to spend $1000+ a year on coffee :)