She bought my daughter a hideous dress to wear for her birthday.
Do you really not like the dress?
Yes and she spent a lot of money on it
You should be grateful for gifts for your child. Maybe you can appreciate the gift if your daughter likes it. If you're ungrateful, people will be reluctant to give you things in the future.
What? I'm allowed to say that I don't like the gift.
It's fine to not like a gift, but you should at least make an attempt to be grateful for it.