The central plateau is the most densely populated region of mexico because?

Most of the people in Mexico live in the central plateau because it is formed from igneous rocks, which means there's a lot of minerals for exploitation, also the soil is better in this part of Mexico, compared to the north or south, and it is most suitable for agriculture in the country, and the climate is also the most suitable for living if we compare it with the very dry and hot north and the tropical rainy south.

South wales composes a lot of coal in that region.