No, it's not a reckless thinking. It's a non-judgmental thinking related to one's reaction regarding someone's actions. Not being a judgmental and slut-shaming person isn't connected to the decision-making process. If people raise their kids right, they teach them to distinguish between "actions I take" & "consequences of my actions" and "decisions other make and their consequences". Knowing that doing sex work is not a decent job that is also considered immoral, plus valuing yourself more as a body which people (mostly immoral men) are going to sexualize; is what every kid should know. It's a completely separate thing from teaching them to not be an asshole to others and not slut-shaming people for their actions.
What you're suggesting usually leads to kids being afraid to tell their parents about their mistakes, which in turn leads to them making even more mistakes, as well as worsening the situation. Not only it leads to fear of your parents' anger and shame, but also to awful outcomes of certain situations. Also, your kid will know you're an asshole who judges others.
If you raise a kid right, they'll know about the consequences of their actions. Like I said in the article, people usually turn to OF because they're desperate. If your child had to turn to OF as opposed to asking you, their parent, for help - it probably means what I said in the previous paragraph: there is no trust and they are scared of your anger and shame. If anything, what you're suggesting can actually LEAD to kids being tangled in sex work.