A Better Way to Use that Deposit Slip

Today at the bank I saw a little girl doing her little girl drawings on a deposit slip at the bank. When she finished each one, she put it into a little envelope sealed it and gave it to her dad. Adorable. She reminded me of myself at her age, my mumz would always use those slips to keep me occupied while I waited for her at the bank. I wonder how many people do that? Why don't banks include a little stack of colouring pads for the kids?

I'd like to say that I've outgrown this little pastime but that would be a lie. I still draw little flowers on mine whenever I'm in line at the bank. If they started making colouring pads I'd totally use it. No shame or hesitation whatsoever.