how old do kids have to be to count as an "angler"

[longsidelandry]

If it's like hunting I think they would need to be able to do everything themselves. That's what we were told when we asked a GW about a kid hunting. He said they had to be able to load the gun and show that they could shoot. So I'd imagine for fishing they would have to show that they could cast and retrieve? Would be a good time to give the GW a call to make sure you get the clear cut "rules" IMO.