That sounds perfect to me! I can totally see Childe being a normal guy but he gets drawn into all this underworld crime stuff and is so weirdly okay with it and then is just good at it... and hey, if his boyfriend is the top dog, it only makes sense for him to be involved too! How nice that his hand-eye coordination and fast apm translates over to real life aim and reflexes.

Eventually cue hanging around at Zhongli's HQ to pick him up for dates and signing autographs for the newest recruits and getting tips on the best way to murder a dude from the upper echelon while he's waiting for Zhongli to finish up a meeting.

And personal weapons lessons from the boss - that's strictly boyfriend privilege.