Average person would on average pay the same, less taxes for subsidies and more in the store. The problem is with smaller countries, where your local milk will

Average person would on average pay the same, less taxes for subsidies and more in the store. The problem is with smaller countries, where your local milk will be more expensive (and you less taxed) but your neigbor countries' subsidized milk will still be cheaper, and you'd buy that and in the process, destroy your local milk industry.