The widespread Covid-19 is affecting the elderly the most. The reason being given for this is that they have a weak immune system. However, what is surprising is that the virus is not affecting children? (See this news). Children also have a weak immune system - a system that is not fully developed and still learning.
I have a strong feeling that the reason for this could be that Coronavirus is not killing us directly rather it is killing us by aggravating our immune systems. People who have a fully developed immune system are fighting it so much that they are harming their own body, i.e. the youth and senior citizens. Among them, the elderly are not able to take such an extreme response of the body and dying, while the young people are able to. As for children, their immune system is simply carefree and does not even consider it a threat.
How true could this hunch be? Is there any research in this direction, perhaps on related diseases?
PS: I have experienced grave allergies personally. And hence, I come from the school of thought that our toughest battles come from within.