It is quite common to have budgets employees have to work with.

Ever had a company credit card?

I suspect it's more the individuals would be warned and re-trained if they didn't keep their costs under control (usually it's done at the team level) rather then having actual financial responsibility.

Not sure what the problem is, if anybody exceeds the expected « normal usage » we simply get in touch and fix the issue.

Lessons learned for everybody, it’s a win-win situation.