Come of age means growing up. When you have more responsibilities, when you're moving from childhood to adulthood and understand more things. When you are changing but not only physically, also mentally. When you are becoming more MATURE.
An example of a simile is the following:
"The tree was as thin as a hound dog."
As in the sentence above, a simile is a figure of speech which compares two different things, in order to make the description more intense or forceful. Another example could be:
"The man is as tall as a giraffe."
I think it's - Gives the federal government responsibility for enforcing the act..
Please correct me if I'm wrong!!! :)