Thanks for the background. So their introductory YouTube channel video explains the lifestyle. Some quick observations....

They are Canadian. Does that not mean Universal Health Care? What would those two be paying to access their health care? Anything?

They have no kids and could not continue this way if they did.

The van looks fairly minimalist.

How does one get into the house sitting business?

Isnt their YouTube channel an income generator?

What are their plans for funding retirement or disability?

Wouldnt it be interesting if they would lay out their financial expenses for the past year?

What kind of support are they receiving from time to time from relatives, friends and kind people?

Some of these questions may be answered in other videos but I haven't had time to research.