The Tokyo Rumble!!

I have been in Tokyo about 4 days and have been shocked with the Japanese society quite a bit. I have never seen a large city such as Tokyo without the usual homeless population. I constantly wonder...where have this people gone. This curiosity my get me in a little of trouble, but I have decided to start asking where are the homeless people and what happens of them. I am really sure that there are homeless, but I do not see them. All I have seen in Tokyo and most of the train lines is the typical Japanese that we all imagine. The highly fashionable, clumsy, shy Japanese girls and the un-kept Japanese men. On the surface Japan seems great, but is it really? I have also found that Tokyo has one of the largest and most active Red Light districts of the world. I read in a book that the sex industry brings about 2.3 trillion Yen...now that is a lot of money. From my personal inferences, it is not hard to imagine why the Japanese sex industry is so active here. Life in Tokyo is extremely expensive this means that children from a household will live with their parents until their marriage. Japan also has one of the lowest if not the lowest birth rates in the world. Japanese men are pushed to the limit to make something out of themselves in this ever shrinking job market. So why do I mention this facts and mention the sex industry? I do it just to perhaps acknowledge that there is some kind of repression(internalization) that may translate into a sexual one. I am not trying to infer that that is the cause of the robust sex industry, but that there may be some connection. So...do I think Japan is beautiful? Yes. However, we the tourist and the people who come to Japan for a while only see the surface of a complex society with problems like the rest of the world. Now if I compare the lifestyle of a Japanese child with that of a child in Mexico. You may think that this is an apples and oranges comparison, but if you look at it closer. What would you rather be a child who has little but has time to play in the dirt or a child who has a lot(by this I mean both social and economical pressure like the Japanse) ?