My DS has blonde white curly hair... I chop it, sorreh! But my argument is the more trimming it gets, the more lovely and thick it will grow, thus becoming less matted with that fine stuff, ya know? I don't chop it right back, just enough to stop the knottiness but still be a bit curly.
My brother is the same, and mum did the same to him. He has quite an impressive mop of curly blonde hair now.