I can see where you're coming from, but I think in practice this is not a great idea. Even if it's not intentional, it's not going to be great publicity when you have an app that shows different women with different price tags.
I imagine it's not great either if, on current dating apps, the number of messages women receive becomes public information. The problem here is less that different women cost different prices to message. The problem is that it's visible. If you can overcome this there might be some merit to the idea. This is just me being open-minded though. It still feels like an icky idea.
It depends on what are the consequences for failure. In war, lack of preparation means death of your men at minimum, and the collapse of your nation at worst. In training, failure makes you stronger.
It's a good argument for managers to create a working environment where employees are not afraid to fail. I absolutely agree that starting early is the best and fastest way to learn. Too many people avoid it because of the negative consequences for making mistakes.
I imagine it's not great either if, on current dating apps, the number of messages women receive becomes public information. The problem here is less that different women cost different prices to message. The problem is that it's visible. If you can overcome this there might be some merit to the idea. This is just me being open-minded though. It still feels like an icky idea.