Please read this as being said very kindly and gently, and not in a condescending fashion;
I'm sure that you and she always had every intention of visiting them and feeding them. I'm just not sure that you understood this would be a lifelong commitment and food on days 5 months later where no one gets too busy and forgets or has an appointment elsewhere or it's pouring rain (you know how it goes) is just not enough.
Domestic animals have been bred to live symbiotically with humans. They need us. Or they die.
And even wild things, once you take them from the wild, you're responsible for them for life. If you hatch out a mallard, it never had anyone to teach it how to forage for 100% of it's diet, in all seasons ... because it doesn't have a whole wild flock of parents and relatives to follow. Instinct might tell it to fly south, but instinct can't tell it the best places on that route to rest, to eat. How to not get lost over a forest with nowhere safe to land. Instinct can tell it that sudden movements are dangerous, but not what it should do. Hiding in the reeds will save it from the eagle, but is lethal if there's a fox.
You were probably thinking they'd fly off in fall and live happily ever after. They'd fly off ... and be dead in a month. This is why when conservationists want to help population growth, they don't just hatch out a bunch and release them - it's been tried, it doesn't work.
4H clubs do incubation projects all the time. They can help you. Or, hatch out something else, like Button Quail.