I appreciate this question, as i started fishing when I was 7 and also had a dad that wanted nothing to do with fishing. For me I read every fishing magazine and book that I could get my hands on. This actually encouraged me to read and my parents supported that. So my parents bought me any magazine or book that related to fishing. This may be a place to start. Second was that I found one adult that was willing to take me (my mom). My mom is the most patient person that I know. She knew nothing about fishing but was willing to sit with me. I taught myself after walking and talking to others on the bank. A year after fishing I got into Bass fishing. I bought myself a baitcaster and started practicing in my yard. I then went and fished with top water and plastic worms all day- often times getting skunked. I made the commitment one day that no matter what I was going to fish with a rubber worm. That day I caught my largest fish at the time- a 1lb largemouth

. I was so excited. The lake size limit was 15 inches, but I didn't care-that fish was coming home to show off. When I was 12 my parents allowed me to enter a bass fishing club. The club allowed me to fish with them. They were great. They taught me so much including morals and ethics concerning the outdoors. The first time fishing with them I beat my personal best by catching two, 2.5lb largemouth. I actually qualified for state my first year but was too young to fish it.
DJD-IF you are willing, you could be this mentor that the club offered me when I was a little older. We need more people to take kids outdoors. Can you post where the kid lives. Maybe somepeople can offer good starting spots to fish from the bank for the kid.