This would be an absolute nightmare experience. It would force you to make small decisions about money constantly. You would have to constantly make the decision "Do I want to pay some money now or do I suffer through this ad? How much have I paid lately? It feels like it might be adding up? But I really can't be bothered, maybe I'll just pay. I feel bad about paying so much though..."

It would be utterly exhausting, which is why it will not happen.