But, are you not going to tell your kids, "don't walk in dangerous dark streets at night" and "scream if someone tries to mug you"? No, of course not, because it would be idiotic not to, it's just common sense! Then why wouldn't you tell women (well, people in general), "don't be alone with people you don't trust" and "scream 'no' if someone tries to rape you"? It's common sense!
Victim blaming is when you say "Well, if you hadn't been alone with somebody you didn't trust, you wouldn't have been raped"; it's technically a true statement, but it puts the onus on the woman (why was she alone with somebody she didn't trust, something she's been told not to do?) as opposed to on the rapist (why did they rape somebody?).
While it's valuable to give people tools to avoid situations that might go bad, it's still important to recognize that the person at fault for the situation going bad is the person who commits the crime, and not the person who ended up in a bad situation.
Sure. Which is why, in addition to telling people to wear seat belts, we also make people take Driver's Ed so that they can demonstrate that they at least nominally know the rules of the road and can drive safely.
What's the Driver's Ed version of teaching people not to commit rape or sexual assault? When I was in college, there was a freshman orientation activity that talked about consent, but it wasn't mandatory, not all colleges have it, and not all people go to college. Who's teaching high schoolers about the nuances of consent and what it means to sexually assault somebody?
Do you tell banks that they shouldn't have kept so much money in the vaults if they didn't want to get robbed?
Well, it becomes a meme of some sort, with everybody making fun of the bank. For example: there is over a million dollars in cash, the bank is near multiple good escape routes, the bank's cameras and alarms are broken, the "vault" has a hollow interior door, etc.
Why not? When two people don't have the presumption of consent, what's the harm in checking to make sure "hey, is this something you want to do?"