Coordination, mentorship, peer review, banter and camaraderie.

"So what time is it where you are? Wow, 6am!? And the weather?"

LOL. Well I'm very against 6am meetings. >10am or bust :)

But actually IME it's not uncommon to actually chat about stuff. What'd you do this weekend? Did you see X movie? How did you solve that issue? But that might only work if it's not 6am.

How/why are you mentoring people in a standup?

“Working on ticket X, but not sure how to do Y.”

“Oh, that’s easy, you just need to change Z.” Or, “No worries, let’s stay on the call and figure it out.”

But why do you need a status meeting to do that? If you have blocker why not just raise the blocker when you have it instead of waiting for a status meeting.

Rarely is anything "needed" :) and there's usually multiple ways to do something.

But, for example, maybe the person isn't blocked yet so they don't know to ask, but they're going down a road that a coworker knows will be a dead end, and by overhearing it that coworker will speak up and offer a suggestion.

Maybe a senior dev is a 'curmudgeon' who doesn't follow public slack channels, but if you put them in a room with everyone else then they'll contribute.

I think the benefit of status-meetings/stand-ups are not for the status so much as the forced recurring interactions with teammates for humanization and collaboration (a la the infamous "water cooler chats").

(Also FWIW I'm pretty against these sorts of meetings every day. But I think 2-3 a week is a nice balance.)