I am not a fan of meeting if it is clear that we are not a good fit for each other. I don't want to make my days any longer than they have too and I value my time off too much to meet with people who aren't going to agree with my contract. I would send another email asking what her plans are in regard to the deposit should she like my daycare and want to come here. If she flat out doesn't want to pay the deposit than I would let her know that the meeting is cancelled and that you wish her the best of luck.

If things are iffy though and you aren't sure what her plans are, I would meet but ask all the deal breaker questions first. If it doesn't go well than you can cut the meeting short.