DD1 recently turned 3. Since then she has refused to take it in turns with toys, share etc. She fights constantly with DD2, who is about to turn 2, ending in both of them crying, and now also cries when anyone else tries to take her toys on playdates. she actually used to be good at sharing when she was younger and even during the terrible twos.
A lot of the problem I suspect is because she has to constantly share everything with DD2, who is so close in age and has a lot of same interests, and so they have both become very territorial and possessive. It just makes it v difficult if people come over, and also when we go out - for example yesterday we had a major meltdown at a soft play when she got off the trampoline to give someone else their turn.
I know it is difficult for some children to share, and do not expect her to happily share everything, but she is getting worse as she gets older and the cries are getting louder. Any advice appreciated.