It MAY get better. I took an 18mo for the first time in over two years of 2+, and she was similar. Everything is new to her, so you can see the appeal "Oh I like this!" "That's new, too!" It took a lot of redirection and a lot of reminders but she got it within a couple of weeks.
I have had to do this with EVERY child in my care in the past few years. They are ALL dumpers and ALL have told me (and/or their parents) that they aren't expected to pick up toys at home.
