Hey don't blame me! The movie uses the song too - I reckon the title was chosen carefully - so no pun intended. If you don't know what I mean yet - Auerhaus is spelled like "our house" (now you only need to know a very famous song - which is in the middle of the street and so forth).
All that aside though (although as you can tell I do like a good pun - or two or three - as many as possible), this also is an indicator of ... well of people growing up - trying to free themselves from the shackles of their parents of sorts. Of course they are still kids - behaviour wise. It is not the easiest thing to shed certain things.
Being mature is not always an age thing of course. The acting is quite solid to say the least. If you like the theme here, you might find a lot to enjoy. Life ... maybe not the one you ever imagined for yourself. But one you can empathize with at least ...