A Percy and a Nigel in the same chapter. All we needed for a trifecta was a Neville.
Lynix saved Simon and without viewing Percy's almost certain micro-genitals. Some things shouldn't be seared into the memory.
Going away caused more identity problems. Perhaps if his parents had left there before he was born or while he was an infant, it might be different. As it is his current tether is the village. He has to be there.