That is not a mainstream belief. Most of Islam ties religious responsibility such as fasting and hijab to puberty.
That was what I was reading, but then I came across other articles that state:
"Islamic teachings call for Muslims to start fasting about the time they reach puberty, which is interpreted differently depending on culture and adherence, and can range from
age 7 to the late teens. Many American Muslims seem to start partial or full fasting about age 10."
This kid could be 7, but he's pretty small. But then again a lot of Indian kids are. It just doesn't sit right with me but I could be reading into something that isn't there. I don't think I am tho.