My oldest three kids were never big on toys. My fourth one does play with them, if we are at other peoples houses - and he has some trains/train table and cars/mat at home and a few "guys" - but mostly plays with household items, like hangers or whatever. Don't know about the baby, yet...she likes toothbrushes and shoes.
My problem was I didn't realize they didn't like toys...I can remember being at the store trying to talk them into stuff.
Our house was so over run with toys, and I'd get frustrated with them because they didn't keep them picked up. Well, duh!
They didn't care about them, why should they take care of them!?! (It took me quite a few years to figure this out.
It's been a process. When I realized what was going on, I told them what I thought it was. They were relieved to be set free from all that stuff! They actually said thank you. We decided each kid would keep their most favorite things, and everyone would get a 55 gallon bin. Not one kid filled it up. I, however, was like...oh wait, we need to keep that! And, no...don't get rid of that!
Plus, things creeped back in over time...
So, just a few weeks ago, I was so upset going into the playroom where things were all over...walked on, broken, missing pieces, etc. I freaked out and said I was going to get rid of everything! They all thought I was serious and my oldest said that's fine, I just want my Yugioh cards, my daughter really only had Webkins anyway, my six year old has a couple things (omnitrix, bakugon guy, a couple of his own Webkins and some trading cards) and my three year old has his trains, cars, and like 3 guys. The baby has her kitchen and some food, a basket of blocks, a ball and a baby.
Well, to be honest - we do have a bin of dress up stuff, books, board games and a cabinet of art supplies. But they aren't toys...so I don't count them.
I haven't needed to clean up their stuff since...and no one has even asked for anything back. (They have asked for more cards, or Webkins though!