Diagnosed with mild autism/asberger's at age 3.
As long as it's appropriate and satisfies them - let them indulge in their obsessions! It is amazing how their brains are wired differently - almost genious beyond what we can understand.
My daughter has always loved horses. She knows everything about the breeds to anatomy.
We started out letting her take lessons. We then surprised her with her own horse. Her horse passed away after one year, but she now has another horse. We bought her a more advanced horse that nobody wanted because it was difficult to handle. She talks to the horse, and the horse looks at her soft and sleepy- eyed. They respect each other. She has ridden her everyday for two months. She took her to the county fair and won grand champion. It takes most kids 6 -8 years to accomplish what she has in two months! Her goal next year is to take the horse to the world show in Ft. Worth, Texas.
It is a long shot as her $2,000 horse will be up against $100,000 horses and people with lots of money and celebrities kids - but I say yes, if you work hard and save your money to help pay for it, we will take you!
So whatever their obsession is, help them and let them enjoy it! Their abilities are truly endless!