I'm not planning on PIV sex, (though "never say never.") At the moment, I have no sex drive, so I'm either ace or demsexual. But if I were with someone I really cared about, and they wanted it, I think I'd go along with it.
I got my vaginoplasty because:
1. I knew that the transphobes were getting more and more power, and I wanted to make it hard for them to identify me as trans, if it came to that.
2. Something inside me said that this is what I wanted/needed. That "something inside" (which I usually call my "inner oracle") doesn't give reasons, but they seldom do, but it hasn't led me wrong my whole life, so I just went with the flow. And I have not regretted it. (Though I had to wonder the first few months, when the pain was bad and dilation and such had taken over my life.)