Kritias hat geschrieben:Hello ever
yone
!
I'm new
here, an
d I would
like to know whether this introduction is good.
1) The discussion about moving out is getting more interesting.
2) Many people, including students between 17 and 22, left
their parents' home and live on their own.
3) Most oft
them move out to get more chances in life.
Is
this correct English?
Thanks
! 
Apart from some mistakes your sentences are ok, but it is not a good introduction.
1) you start your ... (an essay? or whatever you are trying to write)
by referring to recent or previous discussions (which are not included nor properly referenced...)
that seem to have reached a turning point or are somehow more interesting now - Why? What is different now?
2) you need to specify what they leave and try to connect the content of the sentences (logic)
3) an unproven statement (no source) which is not obvious, but rather bold
How to write an introduction
http://lmgtfy.com/?q=how+to+write+an+introduction