You have to use clothing made for the boy. Clothing made for other characters won't fit properly. Think of it this way, you probably wouldn't fit into my clothes very well, and vice versa. In real life, can a 12 year old boy wear a 30 year old man's clothes? Probably not. Sorry to say, but there's very little clothing available for kids. Textures are the same way. You have to use a texture made specifically for that model. Each model has a template. You can create your own textures from these templates if you can not find a texture that you like. Hope this helps.