[ He can't help it.]

If you don't drink, how can you find good alcohol? You need to bring someone knowledgeable with you next time. You won't get swindled that way.

[Should he be reprimanding another's disciple? no. But should he offer the opportunity to improve skills? That was the teacher in him. But back to Zishu]

My nephew is about the same age as your disciple. It might be beneficial for friendships to form. After training.