All good points. Some VCs will ask for the deck before taking a meeting, others won't.
I personally always do, unless I know the entrepreneur or he/she has been recommended highly by someone we trust. We want to be respectful of entrepreneur's time and only invite them if we think that we'd genuinely be open to investing (i.e there is no issue with category, stage, geography, etc.).
If the entrepreneur refuses to send a deck, I'll explain why I need it as a first step. And if I don't get it, I'll probably respectfully pass on the opportunity.