I try to avoid using the expression ymmv because it leads to confusion.. except for a few things. But in a way it should be a given. Appearance and age gap should not be an issue to me at all, but other things such as poor hygiene, lack of communication, different needs, rudeness, etc can change the experience. I'm going to say that most clients get the same treatment from me, but even if I say I offer certain acronyms it doesn't mean all these activities will happen during a single booking (and that's normal!), and often clients don't ask for everything I offer, they want an organic and tender experience because it's a gfe session.
I do agree that definitions like GFE and PSE should be standardized sometimes because they can lead to confusion, and maybe sometimes in the moment something will happen that's beyond what I usually offer as someone who advertises herself as a GFE provider, but I don't want to feel pressured to offer it all the time. I added things to "the menu" in the past year that are typically not part of gfe, and most people don't ask for them. I'm wondering if it was the right choice now. I understand why DFK is a need for a lot of clients who want a feeling of romance and passion to the session, but like I said, I feel like a lot of people don't know the difference between LFK and DFK. (even I am not so sure... but i suspect that dfk is a lot more aggressive)