The escorts who use booking forms do so because they make "first contact" actually useful.
Most escorts use third-party providers to host their forms, which is inherently non-private.
What's the alternative?
Plain HTML and links like this from time immemorial: violetrollergirl.com/colophon/boo...
violetrollergirl.com
Steal My Booking Form Code • Violet Rollergirl • Exquisite trans courtesan
Documentation for my privacy-preserving booking form code.