>>/45203/
 >>/45205/
we have that as well and I think its like that everywhere at least for community events like scheduled club rides. Someone designs the route and makes sure nobody gets lost along the way unless its a drop ride.
I did that once last year, it was my first and only service to the club. Was supposed to be a casual ride around 2 hours tops with 20-60 people after some local bike show thing.
I chose a 45km / 400m elevation route without any steep gradients where we ride like 2 w/kg uphill and it was all fine until 2 people started cramping and falling behind with like 15k to go so I had to ride with them separately (they didn't know the route) while another guy knew where we were going and volunteered to lead the pack home.

Most group rides I do are just meet ups with the bros though, no leading or big organizing necessary