Not that this makes it ok I'm the slightest - but people are reading "being kept in a drawer for 3 years" as always being in the drawer under the bed.
She wasn't. She was sat on the bed when found.
She slept in the drawer and it may have been open during the night.
The mum fed her so she had some adult interaction.
We don't know the curtains were always shut but she never went outside to experience that.
We don't know if any medical diagnosis that may have contributed to her size and/ or development.
There is no doubt this is abuse and neglect of the worse kind.
But this ain't a mum who had a child and shut them in a drawer to die.
I'm guessing - as others have said - this is a mum who gave birth during a pandemic to a child she didn't know she'd conceived or was in denial she'd conceived. Who she thought may die or who she concealed for so long the lie was hard to reverse or confess too.
Nothing is ever black and white. This case certainly wont be and there will be so much we don't know.
The only thing we know for sure is plenty of lives will have been affected by this beyond that poor little girls. And plenty of people will want to make sense of this like many posters are because it's so extreme it's not understandable.