From my understanding, an Aquarius moon is quite brilliant for a guy to have.

All my bro and sis had capricorn(like me) and cancer moon so I can't give you real life relations. In fact, my half sisters and brothers have cancer moons too (one of my brow has a sagittarius moon and has a hard time adjusting to life).

I can identify very quickly with an aquarius moon but I can't define them unfortunately.
The humanitarian thing comes when they are older but at a young age they are still very friendship orientated.

My best childhood friend had an aquarius moon and I remember he gave his mum a difficult time and would be wild in his eccentric ways.

But they are always naturally gifted with intelligence and creativity so it's probably best to steer those qualities in positive directions.

I'm not a parent or anything, but from my own experience as long as you are a supportive and caring parent, it's all gravy (my mum didn't have these qualities unfortunately).

They will definitely need their space, mentally and creatively. I was grateful that growing up my own mother way rather detached and practical ( she has a capricorn moon) i needed a lot of me time, in my room drawing, writing and being creative. I would have clashed with her more if she was more in my face.

So yeah let them have their psychological space.