This is kinda happening already.
In the past house sitting was always a service performed in exchange for accommodation.
However, I hear that recently it’s becoming more and more common for owners to collect rent.
I don’t think that’s necessarily greedy owners (although there are plenty of those), it’s more of an indicator of how high demand is.
No1@aussie.zone 5 weeks ago
“How to get free child minding using overseas labour!”
aka au pair