There were both indivual babysitters and some other form of baby sitting service.
As Dom will for sure know and im sure many others will know most contential resturants are far more family orientated than ones here in the UK(although thats changed with the influx of european staff in many I have noticed) who will dote on the kids and be insulted if you did not bring them almost. Just like in most Phill resturants where kids will be running around, eating with the parents or dozing in the corner. Whatever no family would leave them alone that is for sure.
But remeber Joe Sir, one rule for us plebs and another for superior than thou types it appears the way they treated the media and demanded the police to so this and that showed the type of people they are imho.