Why isn't advanced green at the end of the light?

Having an advanced green at the end of the light won't affect traffic in any sort of way, but it would make it safer for pedestrians to cross.

There's a couple of crosswalks that I have to cross, and every time there is an advanced green, there's always like 3-4 cars who run the lights. But I'm usually in the crosswalk when that happens, like I'll get the walk signal, start walking, then I'll notice a car coming right at me at full speed.

If the advanced green happened at the end of the light this wouldn't happen. Traffic would flow at the same rate, and everything would be safer