Very interesting article. Do I understand correctly that sex work is still illegal in the US? If so, what's the rationale? Why can't consenting adults do what they want with their body?
If a woman is poor, struggling to survive or trying to give a child a decent life in a society and economic system that is very sink or swim, do you consider it "consent" if she agrees to have sex with you so she can pay the rent, or have a decent meal, or buy the drugs she got hooked on dealing with depression and alienation, sold to her by a predatory drug dealer?
Longer answer: assuming there is no direct coercion, like a trafficker ring/pimp involved, I fail to see how this kind of struggle is any different than the single parent working night shifts at WalMart who still needs food stamps to feed the family. Or the low wage worker going to a factory each day ripping chickens apart so you can have your chicken breast and chicken nuggets.
If your theoretical mom can make a living that does not require her to work 14h days in two jobs and never really see her kids, good for her, regardless of whether that involves sex work.
Predatory drug dealers are not exclusive to sex work either. What's the alternative for your drug addicted hooker anyway? A "steady" job is probably out of the question at this point. So... burglary and robbery? I am empathetic to drug addicts and am all in favor of helping them, also at a regulatory level. Things like decriminalizing possession and easy access to a reasonably funded support system (with social workers, etc) and treatment for those willing to take that step. Driving drug addicts, who we as a society do not help enough or who refused our help, into a life of hard crime, taking away their livelihood and/or making them even more vulnerable to abuse (if you're a "lawless" prostitute, then you won't go to the police when you've been beaten up, raped and/or robbed for fear of being arrested yourself) is not a solution to me.
All the resources spent right now punishing prostitutes and their clients could be redirected at fighting the actual criminals (the predatory drug dealers, human traffickers and pimps), and to help and support people struggling with drug addiction or mental illness as well as victims of human trafficking.
I don't get how with prostitution a lot of people always proclaim "but we should ban it entirely because trafficking and pimps and drug dealers!". All the while we do not ban all factory jobs because "there are some sweat shops with defacto forced labor!".