In the past I know it was big no, but then I remember reading an article or two about how the consensus was shifting. That it allowed kids who didn't didn't have great core strength a sturdy base to do more sitting on the floor activities without doing harm to the joints as was previously thought.
I hadn't thought about in awhile, but just noticed my 14 month old dcb doing it (no concerns about abnormal core strength present). I will do an updated bout of reading later, but was just wondering what the general take on it was in the daycare world. Especially from those of you that have PT/OT coming for therapies.