Again, there is no mention of her age in the stories about the visions. Other unrelated sources state she was a child, but not the stories of the vision. The traditions are a jigsaw jumble, not a coherent story.
What relevance does this have?
The stories about the vision state that he was told to marry Aisha and other stories indicate that she was a child at the time.
There's nothing to indicate that the vision of her was of an older Aisha or some metaphoric placeholder for her, so the vision would appear to be of her as she was.
He went on to marry her when she was a child and consummate the relationship when she was a child, so there doesn't appear to be any prohibition against this behaviour in Islam, as God told Mohammed to do it.
It's perfectly understandable that other Muslims would see similar behaviour as either permissible or at least nor forbidden.
Some may even see it as something desirable, following in the footsteps of the prophet.
I'm not sure how else I can explain this to you without repeating myself. Not everything that Muhammad did is part of the Sunnah, which is why different groups of Muslims have differing views about 'A'isha's marriage to Muhammad, because those different groups consider different things to be included and/or excluded from the Sunnah. The Salafiyya consider 'A'isha's marriage to Muhammad to be part of it, while al-Azhar al-Sharif does not consider 'A'isha's marriage to Muhammad to be part of it.
Still irrelevant and you still haven't addressed my point.
This was an act committed by the prophet and ordered by God.
Saying that some Muslims don't consider it to be prat of the Sunnah is meaningless.
Which I agree with in principle. However, I'm far more interested in seeing that things like child marriage and FGM/C get ended no matter where they occur or what justification is used for them, which is why I'm all for the one interpretation and wholeheartedly against the other.
And a religion whose prophet married a child is probably going to have a problem speaking out against those emulating that act.
There may be some exceptions to that, but those who promote such behaviour will always have something fairly strong to fall back on, to those who share their faith.
That it "indicates a child" is your interpretation - the hadith doesn't mention age at all. And Bukhari 3895 describes the vision rather differently:
Narrated `Aisha:
That the Prophet said to her, "You have been shown to me twice in my dream. I saw you pictured on a piece of silk and some-one said (to me). 'This is your wife.' When I uncovered the picture, I saw that it was yours. I said, 'If this is from Allah, it will be done."
Bukhari also gives her age in a later passage.
Given that the "picture was yours" (Aisha's) and she was six at the time, it seems odd to suggest that the vision wasn't of a child.
I really don't know where that argument comes from. It seems bizarre.