what an interesting question! I didn't have a best friend when I was little - I spent some of my formative years with family, reasonably insular (which might account for a lot...) and in secondary school, as one does, we changed peer groups from time to time as interests and friendships changed. I have had good friends through my life, and some more remote but long-term friends who I've corresponded with over the last (oh dear) 40 years in different parts of the country - but it's only in the last 10 years or so that I have found good best friends who I can talk to about anything, and vice versa. It feels like coming home, and different friends can be there for different occasions or circumstances. It says a lot about the changes in me, I think, that until relatively recently I've always been a private sort of person and didn't have a best mate. I like the me I am now, and I wouldn't be without my good friends now!