Before kindergarden I had literally zero actual friends. My brother was friends with a neighbor and the neighbor's brother would come over too (3 and 4 yrs older than me) and when they came over I would tag along. Sometimes he would go over their house but I was never invited. I knew no one my own age (3/4?) IIN?

Everybody in the world at least have 1 friend. You don't need many just a really good 1.