How can I "DELETE, NOT HIDE" my app from my purchased list?

I have a child. And like children they are very clever sometimes with downloading apps. Mine has downloaded hundreds of apps on my account in the last couple years and I want to delete them from my purchased list. I am kinda OCD when it comes to Data organization and like to be able to sort quickly through my list instead of constantly questioning certain apps that I may or may not have downloaded. I think we should have the right to delete these apps at our discretion. Simply hiding the app does nothing for me. Will we see this soon?