Nanny job descriptions

I've been interviewed/cleared by some nanny agencies in Dallas, TX now, and can go on-line to review the families and what they will require of their nanny. I'm trying to sift through them to find one that will be a good fit for me, and my son, and decipher what they say, and what they really say. For example:

Candidate must be flexible, able to work long, hours and stay overnight if the parents are out of town. Nanny will assist with cooking, childrens' laundry, light housekeeping, picking-up from school, grocery shopping (if time permits), homework assistance and transporting to various activities.

translates to, we need an intern, someone to do the grunt work.


Or how about this one,

Daily responsibilities are to arrive at 9am for general household duties (light cleaning, grocery shopping, kid's laundry, errands) until12:45. Nanny will need to pick up the 3 year old from preschool at 12:45 each day, continue errands with three year old or return home for play or nap time. At 3:20 pick up older two from elementary school. 4:00 head home for snack and help with homework (or depending upon the day, cart to after-school activities). 5:00 prepare simple dinner for family 6:00-6:30 - finish up household duties while family has dinner. Assist with dinner clean up. 6:30 depart

This position is really requesting a household assistant. All of the carting around I get, since adults who work at a "real" job usually don't get home until after 6. What will Nanny do while the family is eating dinner? Why will she need to stay and clean up from dinner before she gets to leave?

And my favorite:

Nanny will help get the children ready for school, feed breakfast, gather their belonging and assist with any last minute homework and then transport to school. Nanny manager will then come home and assist with light housekeeping, dishes, sweeping, laundry, linen care, and organizational projects. Nanny will also run errands to the post office, grocery store, dry cleaners and other locations as needed. Nanny will pick children up from school, feed snack, assist with homework, transport to various after-school activities and possible assist with dinner prep and pack lunches for next day.

This one is really a request for another mom/wife. Not that she will get any benefits of being that, just a wife-of-the-wife so that the mom doesn't have to work too hard