Soy is SO bad. Especially for boys, but also for girls. From mercola.com:
Any soy that is unfermented -- soy milk, tofu, soybean oil, soy burgers, and all the other processed soy products out there all belong to this category -- is not a health food and in fact is not a food I would advise eating at all. This is true whether it is “organic” or not.
Unfermented soy products have been linked to everything from reproductive disorders and infertility to cancer and heart disease.
Go to mercola.com and search soy milk and soy. And then read what Dr. Mercola says. I would never give this to my children. It is bad news!
I only give my children water to drink during the day. They can have milk with breakfast, but not as a nutritional snack during the day (or all day long). We also don't do juice as it is just sugar-water. We eat the whole fruit instead. Anyway, that is what we do for our children. It is kind of hard to impose that on other people. But, I would probably recommend it to the parents after a relationship has been established.