My 10month old is now a speedy crawler and is totally uninterested in her own toys.
She is constantly going after DS only just turned 3's toys. I try to engage her but she will just climb over me in her persuit.
Other times DS decides whatever she has is his. He never looks at books but now they are all his books so will try and block her from getting to them.
I'm basically a referee all day. When does it get better and they play with they're own things