I would probably classify "preschool" for 14 month olds more as "daycare" renamed for marketing purposes. At this age I enrolled dd, who was AMAZINGLY social, in Gymboree, music classes, programs at the library and swim lessons. All were parent/child programs so we met a large number of moms with kids very close in age. We ended up forming an incredible play group and at the age of 7 many of those babies and moms are still our best friends. Interestingly I believe that most of the kids have also turned out to be gifted although we originally became "a group" because of similar parenting style and matched temperaments of the kids. It worked out great for us.
