Not every hobbyist is looking for a GFE session.
I personally prefer a PSE session. I get my GFE at home. I see providers because sometimes I don't want a passionate time, I just want to explore a different girls body and use it for my pleasure. Most of the time I don't want to kiss a provider, especially if I know she's a CIM girl because its likely that 10min before I got there some other dude just unloaded in her mouth. (Mouthwash or not its on my mind)
I like a girl to be "into" the session but I don't need her to make love to me like my true love or long lost lover.
On the flip side, if a girl advertises herself as GFE, and I expected GFE but then she turned out to not provide GFE, I might be disappointed too.
As far as ymmv, I understand that too. Not all ladies are ready for a guy like me...with my supermodel looks and six pack abs. Sometimes they intimidated by me and can't believe their luck in getting to put their mouths and tounges in and around every crevice of my Adonis like physique. Not to mention the thought of me shooting my load all over their faces and mouths.
This hobby rules!