I have a few very solid friendship groups from all areas of life since childhood/travelling/work/parties etc. I then made lots of new friends through the children, that I do see outside of being with the kids, or even if the kids' friendships have fizzled out. I started off fairly standoffish with my first son's reception parents - with a polite enough manner, but certainly of the attitude of "I've got friends, don't need more. I'm busy. Thanks!". Since then, after being thrown together at parties, school events, activities together I've formed some really valuable and mutually fulfilling friendships with some really smart and funny people, my attitude has changed and I'm much more open. Where we are may have helped, too. Central London, posh and not so posh piled on top of each other, some people have lived nowhere else, some are from far flung places. I've met so many people with so much to say and with interesting things going on in their lives. Also from having one child with autism, I've made some amazing friends through various autism workshops and groups. I really believe that you can never have too many friends. Some will be closer than others, but if you choose wisely, and don't have weirdos or piss takers for friends, then the more the merrier!