You can do what you want but...

As someone who wasn’t able to say goodbye to my absent parent it was still experienced as a loss and loss that may have possibly been made easier with a bit of closure of saying goodbye.

I can only steak for myself, but I’m just saying you won’t know if you made the right decision until that child is an adult AND only if you tell them the truth, that you denied her direct request.

So It’s worth considering twice.

Still decide what you think is in the best interest of the child but understand that child may resent your decision as they age into an adult. I suppose that’s life, I suppose that’s normal for parenting.

But just be aware.