Ya - think the term warehousing comes from the concept that when you have that many children in order to make sure that they do not kill each other they end up sitting on couches and chairs lined up in front of the boob tube like 'crates on a shelf' from drop off to pick up ... warehoused until the parents can get back to pick them up!

Not that there are not awesome people out there who can offer an enriching program to that many children .... when i worked in centre care I would have 12 preschoolers on my own for the first two hours or last two hours of the day so I know I could MANAGE that many children but the level of program would be confined to 'warehousing' every child would be doing the SAME GROUP THING ... so we still did 'stuff' it was just 'contained stuff' aka they were ALL sitting engaged in some adult directed group thing .... story time, science experiment, coloring or fidget toys at a table and chairs cause you just do not have enough EYES to allow that many children to FREE PLAY and expect them to stay safe!