Like so many of the adoption stories in our world today, things could have (and still could) turn out drastically different if the birth mother chooses another path.
Play along if you're willing:
What if Moses' mom hadn't put him in the basket to float him down the river?
What if the princess hadn't felt pity on the baby Moses alone and crying?
What if Moses' sister hadn't been waiting along the riverbank to assist?
What if Moses' mom hadn't been given the opportunity to nurse her son?
What if she'd decided to raise him and not give him back to the princess?
What if the princess had decided not to adopt?