If there is a system like that, the players will first fast farm 1k then save in bank and then they will 2 players going bs every lane while 3 others stay in their lane. The 2 players that BS will not have $$ shortages in a long run and that will make the game very unbalance. Just my 2 cents

I understand what u are going at, what i meant is the player using a CM, lion, Lina and so on, just get some maybe 1 null and 1 boots then save 1k from there and bank in, 15mins is not long and furthermore they can still farm some more. From there, they can go BS all 3 lanes which will make opponents quite difficult to farm in early and mid game, then they become support in late game. GG already loh.