27/28 years old, living at parents with properties..

My partner and I have a unit each and we rent them out and live with my parents to try get ahead and save. We all get along my parents and they love us there. The way I look at it is my parents have vacant rooms in their house which they will not rent out so we might aswell use them and rent our properties out to supply rentals to our area because there is a rental crises in Australia. Is this wrong? What’s everyone’s thoughts.