Medical Definition of Nerve Nerve: A bundle of fibers that uses electrical and chemical signals to transmit sensory and motor information from one body part to another. The fibrous portions of a nerve are covered by a sheath called myelin and/or a membrane called neurilemma. (Note that entries for specific nerves can be found under the names of the particular nerves. For example, the optic nerve is not under 'nerve, optic' but rather under 'optic nerve.')
My oldest two have been babysitting their younger siblings since they were 13 and 12. Before that, my friendâs daughter babysat (and she was 14 or 15). Itâs really not a big deal. They take turns watching the 3yo, and the other kids pretty much take care of themselves.
If your nephew's parents are confident in your 15-year old son's ability and level of maturity, and you are, as well, then it should be fine. Babysitting age is a very individual thing. There is no legal minimum age. Some kids are ready to babysit at 12 or 13, and others not until 17 or 18. Use your best judgment and if you feel comfortable, and your nephew's parents do, go for it! (My daughter started babysitting at 13.