If you think the idea that people will stop valuing things they can get for free and refuse to pay for them is far fetched, I encourage you to see how your hometown newspaper is doing.

Your reply is odd. You wanted "proof" work-for-promotions happen and I just wanted to point out this happens in several trades.

Anyway, I don't disagree with your comment at all.

Certain trades are undervalued because it takes portfolio building or practice in a professional setting to get started. You seemed to be unaware that this happens but now it seems you do?

I didn’t want proof they happened. I wanted proof they have the touted benefits. That is what I am not convinced of. I believe “exposure” through free work is of very little value.