also, are there any age limits?
Considering the sensitivity required in this sort of case, there's as little questioning done as possible. You go through counselling sessions that help you learn to deal with your addiction, but if every addict had to go through a screening process, then very few would opt for the help.
They will obviously ask you some questions but they wont just turn you away. I dont know about age limits though, you can call ahead and ask places what their procedures are.
Oh okay :/