How will issues related to demography impact my life?

(What are population pyramids? they are charts that show how many people are in each age group like 1-4 of 80-84.)


Now I can use this to help my parents job by telling them different information also I could tell them if that place is good to make a new office or not because maybe it is very underdeveloped. But in the future that is a whole different topic if I want to start a business in a country then I can see that the old people are not surviving in  a country then I will most likely build a hospital or a nursing home to gain lots of $ MONIES $. This will not only help me but also the whole population of the elderly because they now get to see their and grand children also this will help the country get more developed. When countries are undeveloped than their pyramid is shaped well like a pyramid or a triangle. More developed countries look more like a coulumn or an upside down pyramid.