A Mayor's responsibility?

I was pleased for Detroit when Mike Duggan  became Mayor.  I admit not knowing the scope of his duties.  Detroit has not had a good track record when it comes to past Mayors.  To allow the Detroit Public School System to be so dangerously deteriorated makes me wonder, just who is responsible?  The health and safety of all who must daily attend these building seems to be terribly low on the list of importance.  I'm so glad teachers, students and parents are now taking part in an active revolt.  All those exposed to long lasting poor health problems don't deserve what has been put upon them.  All this talk about health and well being of our country's citizens, except maybe (among other places) for Flint and Detroit leaves me totally puzzled.  It just seems like all talk.  Environmental quality for many is real  with many active participants.  There are people out there who really do care.  We need more, especially those in government.........................marge