I've only got one kid myself, but the family in which I grew up is similar to this. My two older brothers were a year apart, and I was born 7 1/2 years after the youngest of those two. Maybe I can answer a few of your questions from my point of view
I don't recall ever really feeling left out. The age gap was large enough that I wasn't really interested in doing most of what my older brothers were doing anyway. That said, they did play with me sometimes, and they were definitely there to help me (my brother gave me "sitting up" lessons when I was an infant, for example
). I don't remember much from when I was a small child, but we definitely played games and things when I was an older child. We never really had an issue of two of us playing and intentionally leaving out the third. The three of us were quite close (we've grown apart now that we have our own families, but we still enjoy each other's company).
I loved growing up as the youngest with that age gap. I had (and continue to have) what I see as the benefit of having siblings, but I had the luxuries of an only child when I was old enough to want them (when I was in high school, for example, I didn't have to share a bathroom or the telephone or negotiate for the family car). I think that the gap worked well for my brothers, too. They were also old enough to babysit me, which was helpful to my parents. Hope this helps!


I loved growing up as the youngest with that age gap. I had (and continue to have) what I see as the benefit of having siblings, but I had the luxuries of an only child when I was old enough to want them (when I was in high school, for example, I didn't have to share a bathroom or the telephone or negotiate for the family car). I think that the gap worked well for my brothers, too. They were also old enough to babysit me, which was helpful to my parents. Hope this helps!