My father had 10 siblings and my mother had seven. I had seven siblings myself with over 30 cousins on both sides of my family. I have four children and my and most of my siblings each have six children or so. My mother has about 24 grandkids at the last count Maybe. Further, I live on the same street as two of my sisters and I have another sister that lives down the street, with my brother living 3 mi away. Only two siblings live out of town.
My children routinely play with and enjoy being with their cousins. My daughter has a hard time making friends but she says it's okay because at least she has her cousins.
I have had a very rich experience with many of my cousins and I think these cousins are growing up even closer together both physically and emotionally. Would highly recommend the lifestyle.
Large families are such a blessing when you get older. Kids are an awful lot of work for the first about 10 years but boy are they awesome every year after that. When my grandmother is interacting with her children and grandchildren at reunions it's like she's holding court, the queen of an empire.