What question are you hoping to answer, or what is it that you are attempting to convey through writing this thesis? E.g., Are you intending to focus on the limitations and pressures placed on teachers by...parents, society, etc.? Or are you intending to focus on student development and the specific reasons for why student development is inhibited (which may include a discussion about parental pressures, parental pressures towards teachers, peer pressures, etc.).
Because of the fear of lawsuits by self-righteous parents,
Is this opening statement your opinion, or does evidence exist to show that self-righteous parents are sue happy?
Once you clarify and narrow your topic, I think you will have a good foundation to build a really good and interesting thesis!