Satan hasn't come with horns and a cloven hooves for many centuries now, opting for a more modern look, and often simply working behind the scenes. True Christians will be well aware that yoga IS Hinduism, a dangerous religion that seeks to appease false gods but in reality calls forth thousands of demons. They are invited to inhabit the soul with every yoga pose. I have seen children possessed by demons. This is no joke, this is eternal life or death.
Satan is after the children. He wants to use them and indoctrinate them for his own glory. As these vulnerable children grow, they become rebellious, getting pierces in their faces, coloring their hair like Korean cartoon witches, getting tramp stamp tattoos at the age of 12. Many uninformed parents don't understand what's going on or why their children are angry and suicidal.
Jesus forbids eastern religions for our own good. Parents who love their children must clean out their children's room of all evil toys and demonic attachments, stop reading fiction to them, take them out of school, and get them familiar with the Word.