I think the legal age is 12 years old.
what age is legal to leave your child home alone in new york
13 is the legal age for a child to be left alone in the US
In the state of Illinois, the legal age to stay home alone is age fourteen. Any parent that has a child under the age of fourteen who is left home alone will be charged with abandonment.
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12
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7 years
There is currently not a law that specifies the age a child has to be to stay home alone overnight. It is left up to the parents to decide if their child is mature enough to handle it.
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14
In the state of Illinois, the legal age to leave a child home alone is 14. Illinois is one of only 13 states that have a latch key law on the books.