You mean you tell them you will teach them, require them to have the skills to begin with anyways, work them like any other employee but with a fraction of the cost promising them full employment at the end, and at the end thank them and tell them to move on?
(keeping the first person tone of your post)
On the other hand young workers usualy greatly overestimate their impact on getting things done and the work required to check their work. (I know I was like that)
On the other hand, those kind of "fake" internships are rampant here in France, specially with smaller companies or startups. From personal experience they don't bother checking their work. And how could they, the other employees are interns too.
It was always just "do your job, don't cause problems".
And for free. Of course. My uni literally bans us from being paid. If we do, they won't acknowledge it as internship.
Could there be any explanation for such a rule, that is not corruption and exploitation? I cannot think of any.
Cynically it feels to me like it's just a nice way for the companies nearby to get free labor.
My assumption for that is just that it's just supposed to be an internship somewhere where our focus would be to study and thus we shouldn't get any benefits from it, but I've never heard of it working that way. It was always in IT here just being an unpaid junior.
Second person: You
That's usually called perspective, not tone.