To activate the fetish/kinkTo allow homeless people to service, you need to have active "Smegma" kink. In script this is defined as:
menu:
"Allow homeless people" if Smegma == True:
scene eglory_diana_e2_115 with dissolve
MC "Put the information out there."
gr "Is that a \"yes\"?"
MC "That's a \"yes\"."
if not gallery:
$ Hobosallowed = True
you need to have it already active (I think) as soon as you start a new game
Not sure if this works if you activate mid-game
Steps
1- Start a new game
2- Before doing anything else, right-click the mouse button
3- Click Fetishes on the left side
4- You should see this

5- Click the Black & White fetishes to enable them
6- Should look like this if you enable all

7- Right-click the mouse button to go back to the game