The older the ginger, the spicier it gets. As soon as he entered the door, Hou Niao fell into Yu Zhengxing's trap; but then again, ordinary people wouldn't have been enough to make this uncle waste his time and feelings digging pits.
Clearly, Yu Zhengxing was well aware of the details of his joining the Quanzhen Sect, and it wasn't just the slight understanding he claimed to have before he regarded him as a key individual to nurture.
He wasn't overly concerned because he believed in himself!
With adventure comes responsibility, and opportunities coexist with risks. He had understood this truth long ago, and that was why such opportunities made him feel particularly secure, and not like stumbling upon a Longevity Pill fallen from the sky or digging up a Treasure Gourd in a mouse hole.
After discussing some cultivation issues with Yu Zhengxing, who didn't see himself as a master but displayed the patience of one in answering questions, this was a kind of psychological constraint.