DS, 3 in September, has a lot of toys (PFB) many of which he couldn't give a damn about anymore (Iggle Piggles, drums which you bash and they play a tune/lights, tractors which moo, etc) - he's moved on to Lego and Buzz Lightyears and the like. So we have baskets full of stuff that technically belong to him, but that he hasn't touched for well over a year.
So we now have DD who is coming up to 8 months, sitting up very solidly and sturdily and thus becoming much more interested and easily entertained by various toys which were beyond her a couple of months back as she is now able to bum shuffle towards them, use her hands to operate them, and sit up and enjoy them, etc.
But will DS let her? Every time he sees something being used, he snatches it away from her, not so he can use it himself, but because its "his".
Now I always try and be very sensitive and kind about the whole sibling thing, I've read "Siblings without Rivalry" etc and I am well schooled on the do's and donts, generally, and I know the whole "he had you to himself for 2 years" etc rationale, yes, but, I'm DAMNED if I'm going to spend yet more money on bucketloads of fluroecent plastic tat with insatiable appetites for AA batteries just because these (unused for at least a year) things are technically "his".
AIBU to put my foot down with this one and insist that he shares his old things with her, even if it is at the risk of him resenting her slightly at times? Its not a bad skill to learn, that of sharing, and I know they get better at it from 3-ish onwards (bring it on!) but seriously - AIBU? Hell, every time she acquires something new, he likes to have a good look at it and a play with it, and I dont snatch it from him on her behalf because its "hers". Maybe I should have?!?