that is one of the reasons I hope to have many children as I get older so that my nephews would have cousins to hang out with.
You know how kids go through phases of what job they want when they grow up? Every time I switched, my dad would say "Oh! My cousin so-and-so does/did that!" To the point where when I said "fighter pilot," I was, perhaps, less surprised than I should be when he said "My cousin flies an F-16 in the Thunderbirds. We should go to one of his air-shows"
That is a very weird reason to have lots of children, unless you were speaking in jest. If you do decide to have many children, I hope it'll be for more than the mirth of your nephews.
Also my mom was the first of her cousins to get married and have a child (me) so I always felt like I was in a gray area when hanging out with her cousins because there was too little of an age gap between us for them to not take me seriously (and not treat me as a child) but also I wasn't old enough to connect with them and live through their family lore.
few that was hard to write
more fun context: The age gap between me and my mother's youngest cousin is only 3 years so I hope you can see how I am considered like the true youngest cousin between all the cousins.