This is a debate that will continue for the foreseeable future. I continually read on twitter that many ladies go through the torment of no-shows or late cancellations. There's time and preparation that goes into each meeting only to have the date cancel is without a doubt frustrating especially if another date was possible.
It only makes sense in my mind that the lady seek some sort of confirmation that the gentleman will follow through and keep the meeting. Hence, I fully support and have zero concerns about sending a deposit to secure a meeting with a lady that I desire to see.
One can always set up a separate account at another institution is discretion is a concern.