Posters in this thread confuse the law making sexual assault of a child a crime (so-called "statutory rape") with laws regarding prostitution. In Texas, having sexual contact with a girl younger than 17 years of age is a crime, but having sex with a provider
younger than 18 years of age is a second-degree felony, punishable by 2 to 20 years in prison and/or a $10,000 fine. Normally, prostitution is a Class B misdemeanor, punishable by up to six months in county jail and a $2,000 fine.
Important note: A hobbyist's subjective belief of the provider's age is completely irrelevant to whether the hobbyist committed the offense of having had sexual contact with an underage provider.
That means even if the girl has ID showing she's 18, Fat Momma's Provider Verification Service swears she's 18, and she has ads and reviews here, if the state proves she was actually 17, you're guilty of the offense, no matter what you believed.
Every hobbyist in Texas should read this thread:
"Texas Law Regarding Underage Providers"