When did that happen?  And a legal curfew in no way stops a parent from setting a home curfew.  

If you live in my grandmas house you have an 11pm curfew even if you're 50yrs old.  Otherwise you'll find yourself living somewhere else.  

If an agency can set a curfew for adults and teens I'm pretty sure that a parent can set one too.  

We can't afford to be so apathetic that we let our kids run all over us.. That's how these "tragedies" tend to keep occurring