This spring we’ve seen a few good reasons for using a tour guide.
This car went off the road in La Morra and crashed into some vines.

This car was a few weeks earlier and they trusted their GPS while coming
home from dinner in the dark. It had been raining for 3 weeks and very muddy.
The GPS took them down a vineyard road, not a real road and they got stock
in the mud at midnight. The rental car was stuck in the mud for 3 weeks until
it dried out enough for a tractor to pull the car out.

Had they spent the night in the car they would have woken up to a great view!