say you have italian bee's and your fellow beekeeper down the road has cocasian bee's (or vice versa) and you dont want one of his queens geting into one of your hives
What you are saying wouldn't help the problem above. The queen has to take her mating flight. Unless you bought a mated queen. But if you didn't get a mated queen, she wouldn't be able to get out for the virgin flight. Or say the bees raised a new queen, and she killed the old queen, then the new queen needs her mating flight.
Just a small thought. But it's not a dumb question....I've wondered the same thing. But clipping a wing is probably a better solution.