Being a father of three children, the following conversation, while fictitious, is perfectly plausible in my experience. It concerns an adult trying to explain to a child the rules of chess:
A: The pawn moves like so, see?
[shows three options for pawn. child moves pawn diagonally right across board]
C: And like this?
A: No, only one diagonal space when taking another piece.
[child picks up queen and bishop]
C: But these can move like that!
A: But they are different!
C: Can the rook jump like the knight?
A: No, only the knight can jump I'm afraid.
C: Oh! Why can't all the pieces move the same? It's not fair!
A: Tell you what, there's another game called draughts; all the pieces look the same and they can all do the same thing. Would you like to try that instead?
C: But I want chess to be like draughts.... Can we change the rules?
and so on...
A: The pawn moves like so, see?
[shows three options for pawn. child moves pawn diagonally right across board]
C: And like this?
A: No, only one diagonal space when taking another piece.
[child picks up queen and bishop]
C: But these can move like that!
A: But they are different!
C: Can the rook jump like the knight?
A: No, only the knight can jump I'm afraid.
C: Oh! Why can't all the pieces move the same? It's not fair!
A: Tell you what, there's another game called draughts; all the pieces look the same and they can all do the same thing. Would you like to try that instead?
C: But I want chess to be like draughts.... Can we change the rules?
and so on...