A: A fourth cousin is someone in a family who shares the same great-great-great-grandparents. First cousins share the same grandparents and second cousins have the same great-grandparents. Ordinal numbers of cousins are in the same generation as each other.
8 to 10 years-Should not be left alone for more than 1Â½ hours and only during daylight and early evening hours. 11 to 12 years-May be left alone for up to 3 hours but not late at night or in circumstances requiring inappropriate responsibility. 13 to 15 years-May be left unsupervised, but not overnight.
Maturity Check. Most states don't have laws stipulating how old a child needs to be to stay home alone. So the decision is left up to the parents' judgment. It's pretty obvious to most parents that a 5-year-old is too young to be left alone in the house.ost experts say that by age 10 or 11, it's OK to leave a child alone for short periods of time (under an hour) during the day, provided they're not scared and you think they're mature enough to handle it.