I’ve never heard of people traveling to pet sit. Typically it’s a local who watches the dog or cat while the owner is away.
Thats usually how we did it. Most of the people registering on those sites to find sitters are well off, and want someone they can trust. Plus, the local folks, you tend to have to pay $30-$40 a day. And on longer trips, like 2 weeks or longer, they tend to want a person or couple that can take care of the house and emergencies that arise. But yeah, a lot of people use local folks.