You will be given unnecessary advice on your life
Whether you move in with your mum, dad or both, you are likely to receive advice on your life even if you don't ask for it. From the stuff that you eat, the time that you sleep or the number of hours you play video games for, be prepared to get unsolicited advice for just about everything.
4) There will be clash of opinions: You could fallout with your folks
Always remember that there is a big generational gap between you and your parents. Don't expect them to think like you and most importantly, don't expect them to behave in a certain manner. They will talk and walk in the same way as they have been doing since decades.