Home for so many reasons, but #1 is logistics. Adding commute time back and forth is a mess, especially when you're running late in the morning and your kid won't wear shoes etc. And my son is starving at pick up, so adding more time before dinner would make that worse. And the falling asleep issue someone flagged above. We gave up a spot at a subsidized office daycare because being close to home was clearly so much easier (we're at one within walking distance).