When my oldest daughter was a baby, play dates were and still are very frequent for her and her friends. My younger daughter goes along with whatever we do, but a few months ago I realized all our playdates were never centered around her. She needed to socialize and make friends her own age too. After that I made it a point to host frequent play dates for her with kids around her age while big sister was in school. I saw things in her that were very different than how I had perceived them. For example- she doesn’t share with her sister and is often very physical- she hits, bites, and gets frustrated when her older sister is playing with toys she wants. I feared this behavior for play dates, but she was the opposite. She willingly gave up her toys, coddled the other kids with hugs, and never hit or showed any signs of frustration.