I've also encountered some families who drag out the whole process (one right now in fact, contacted me the same day after the interview to say they want the spot and will bring a deposit... almost 2 weeks ago!) It's a Sept spot, so maybe they feel no urgency. My other thought is that maybe people want to cover their butt by having the spot held while they continue to interview at other daycares. The last 2 families that took weeks to get paperwork/deposit in order turned out to be awesome families that were just busy and not prioritizing it because it was well ahead of the start date.