hmmmk. "no one thinks they'll lose their virginity here. meth will change that." that didn't directly imply prostitution for meth at all, but i can see how it could be interpreted that way. your right, an add about how common it is for female meth heads to turn to prostitution would be convincing because its actually a reality.
however, if you interpreted it my way, and i know i'm not the only one who did, then you would find this add to be an outlandish scare tactic that is difficult to believe. so my point again, make adds that show realistic and probable outcomes for meth heads, not "you'll lose your virginity in a public bathroom," bullshit.