We’ve hired minibuses and never been asked for anything. Mind you I’ve not made a thing of it.
One of the potential problems is, whenever mass travel is required, if it becomes another task, as you highlight reference gliding, it stops happening or happening as much as it did. People may not like this sentiment BUT as soon as something is made more arduous the default is not bother, which is a not restricted to the ATC.
The whole erring on the side of caution has probably caused more reductions in people doing things than anything else in the last 20 years.