I’ve talked with quite a few men about what they’ve learned from pegging and although it isn’t universal, many of them have said that they have a better understanding how their female partners might need more warm-up before intercourse, or might be in the mood for sex but not penetration, or how much one’s pleasure can be affected by seemingly minor events. Granted, anal penetration is different from vaginal penetration, but my point is simply that a physical experience can be a much more effective teacher than reading a book, just as a picture is worth 1000 words.
On the flip side, when they try pegging, a lot of women discover how much work, responsibility, and (sometimes) power can go along with fucking someone. And that’s without worrying about their cock ejaculating too soon, getting soft at random moments, or being the wrong size (assuming they have choices- there are lots of dildo options out there).
So while I’m not suggesting that it’s a panacea, I do think that trying out sex from the other side can make it easier to understand and have compassion for your partner. That isn’t limited to m/f couples or, for that matter, pegging. But given how many heterosexual folks have never tried strap-on play, it does seem like there’s an unmet need there. It won’t make communication miraculously easy and it won’t fix everything about sexism or gender-based inequities. What it can do (besides being lots of fun) is help people develop empathy, compassion, and understanding for their partners. And the more of that we have in the world, the better.