A few times a day, I say to my colleagues "Want to grab some coffee?" and then we go to the coffee machine and get coffee. It is inevitable while doing that we

A few times a day, I say to my colleagues "Want to grab some coffee?" and then we go to the coffee machine and get coffee. It is inevitable while doing that we talk about what we are doing, roadblocks, etc. and sometimes we have nothing to say and we talk about something else. That works for our team of 4-5, but I understand that it can't scale. Of course, if management started calling it a stand-up meeting and took away the coffee, I'm fairly certain we'd get less out of it. tl-dr; why is a stand-up meeting better than just grabbing a coffee with your colleagues?