It makes sense to me. It wouldn't work for me, so much, but it makes sense. If it's not something you prefer, it's not something you prefer.
It's been an issue for me, in my life, who makes advances and who doesn't. I was shocked to arrive in the world of other people and discover the ones with penises weren't much receptive to my openness (or 'advances').
I dated a boy in college who was a big pothead. He was always after me to try it, and I kept trying, but it did nothing for me. Finally, one day, I actually was high, and horny as hell. He got all bent out of shape because I was being sexual with him. (coincidentally, I spent the next 10 years living as a lesbian)
I discovered my relationships are much more successful if I step back, just a little, and let men make advances. I'm quite receptive, however. I wouldn't dream of turning down a date without offering an alternative ('would you like to go to dinner on Thursday?' 'oh, not on thursday, but I'm available next Tuesday' or whatever).
So, I'm not sure if you mean advances, or just confirmation that you're welcome ~ because I see those as completely different.
Maybe the difference in western swing and tango? (I'm not much of a dancer, but I've spent my share of time...)
My teacher of western swing said, 'it's the man's job to make the space and direct her and get outta the way' whereas I see tango as each partner having a part to do, it's not *just* about the leading.