I have a huge family on my dads side. My dad has 7 siblings, my dads mom had 14 siblings(most of them had many children themselves), I've got 1st cousins who have 15 year old children, 2 of my 1st cousins just had their own children in the past month, and another cousin is expecting twins in a few monthes so thats 3 cousins having kids, and 4 new family members. I had a family reunion a few months ago and only a portion of the living members of my family made it, and there were probably over 2 hundred people there. I have about 20 first cousins, my dad has 53 first cousins. I wouldn't even be able to count how many second and third cousins I have. I have cousins 30 years older than me. My oldest 1st cousin is probably late 30s. I'm 18.
I haven't really gone back very far in my family tree, the earliest relative I know about is my dads grandparents who came to north america from the Ukraine in around 1905 or so.
My moms side of the family is much smaller. My mom has 2 sisters, both of them have 2 kids each. I have 3 siblings 2 brothers and a sister. I have a pretty big family. I live in a place where most of my friends are only childs and have maybe 1 or 2 cousins they know. People always go "woah you have a big family" when they find out I have 3 siblings. They've seen nothing lol