K.H.
It is good to have playdates for the kids, but they will play side by side and most are not going to interact until about 3-4 years old. It is important too for the parents to socialize too! It is a good experience for him to be with other kids even if they take the toys away because he will learn how to respond. As long as the mother is teaching her toddler how to share...she may not be ready to share until age 4, but it is good for them to be exposed to other kids and how they play.