To an extent, some uses of water are just better than others. Non-shaded non-lined/piped open earth irrigation is a big waste. Someone using land in the 1920s

To an extent, some uses of water are just better than others. Non-shaded non-lined/piped open earth irrigation is a big waste. Someone using land in the 1920s doesn't mean that they should get to keep having wildly inefficient irrigation practices in the 2020s.