So, it shouldn't be standard what's under the field, what the turf/grass is, or the type of dirt?
I guess it would be nice, but I don't think it would ever really be possible.
There are just too many variations in conditions and material availability from region to region.
For example, here in S. Florida we don't have the same grass you see in the mid-west. We need stuff that can handle the summer heat and torrential rains - and can grow in what passes for "soil" down here. We don't have a clay or soil subsurface like much of the country - we have coral rock.
Even the infield dirt is different. I'm not an expert on the ,materials used, but I know enough to be able to tell you the stuff we play on down here is different from the stuff I have seen in Tennessee - for example.