But such arguments also happen all the time. For example, if you join a company as a junior developer, most people would trust an existing senior developer.

I was about to write "I think it's fine to mislead kids into thinking they can make money." Then I reconsidered.

After reconsidering, I think it's fine to mislead kids into thinking they can make money. Lemonade stands and lawnmowing for neighbors are examples of this. They may make a little bit, but unless they're exceptionally lucky, no one would be under any illusions that it would become their full time profession.