I think for most people it's about pregnancy prevention and not STD prevention. Ask any college kid why he wears a condom, he'll tell you it's because he doesn't want kids right now, not because he's afraid of getting STD's. Although I agree STD prevention is a great ancillary benefit, and it's why I'd still wear one even after an operation like this. But tell a 20 something college kid he won't have to worry about unwanted pregnancies if he get's this operation, the first thing out of his mouth will be an exuberant declaration of how he won't have to worry about buying condoms anymore.