I discovered tucking in my early teens. I don't think they had much problem finding the cavity. But it's far from a perfect solution because of the two bumps. It actually caused me to be a little obsessed with crotches, because I'm so envious of the smooth profile female equipment gives you.
I don't think I've yet seen the lazy tucking look on a genetic female, but have on pre-ops. Actually, thinking about it, and because I'm so obsessed, I did see this lady, last month, in leggings with an inexplicable bulge. From my car, I was unconsciously staring so much that she spotted me and started looking down herself. I'd be surprised if guys didn't give that area at least a millisecond's worth of attention.
But, yes, SRS has to be the best solution.