Can I hook up to a house from a 30A plug to a 15A circuit

NCWriter wrote:
If I had a relative who was giving me what I considered to be invalid reasons they did not want me to plug in, I might wonder if their preference actually is not having a relative living in a class A RV in my driveway.

That's not the issue here, it's my parents house, however since they are renting and my father is a self taught electrician and well known paranoid person throughout the family he is worried about the worse case scenarios, which is reasonable, to an extent.