Concurrently renting out 2 rooms so often that you would want this, is still a qualitative difference between renting out just 1 room or renting out your whole

Concurrently renting out 2 rooms so often that you would want this, is still a qualitative difference between renting out just 1 room or renting out your whole personal residence for just 5 weeks in the year. I don't know that it crosses a meaningful line yet, but it is moving toward the "professional/large-scale" side of the spectrum that your parent comment is complaining about.