There are a couple more months when prepayment is relevant. This, of course, is the hot summer month of July, December. In July we have a lot of weddings. In the pre-Christmas time, I take an advance payment for all events: children's matinees, corporate events, etc. And here I do not ask for full payment, but only a part.
This rule does not apply to holiday agencies, with which I have been working for a long time. I trust them, they definitely won't let me down.