I bring my LO to a play area in the library, it is open to babies and children of all ages and I love it because it gives my LO an opportunity to interact with other children.
He really loves going and is very interested in the other children and wants to play with them. He will be 11 months next week and is still in the puts everything in his mouth phase and is more into knocking things over than building them. There seems to be a lot of three year olds who go to the area...LO so far has done well with the older little girls who are willing to share and play but the three old boys seem to be in the this is mine stage and are more territorial.
LO is kind of obliviously happy to all this but the three olds have had some melt downs with LO getting in on their turf. I feel bad about it because the other moms seemed forced to discipline their kids because of my baby but I am not sure if I should be keeping LO away from them which would be really hard to do because it is a very small area...or just deal with the fact that it is a teachable moment for the three old on how to deal with a baby and also share.
Anyway, I am playgroup newbie...what is the etiquette here?

Re: Playgroup question...LO and older toddlers