I think I had a secure attachment as a baby because I have been told that I was quite the social butterfly when I was younger this changed in high school as I feel it does for a lot of people. High school is a big change for a lot of people and adds to the notion that experiences form us into the people we are today.
It really isn't a big surprise to me that our parents or caregivers have huge influence on who we are. It is interesting that it starts so early. Things that happen while we are a baby can effect us into adulthood. This results from our parents parenting style whether they responded to our needs or didn't. I think its good to note that the caregiver needs to properly respond to the infants needs. This is important because there are parents out there who respond to their child quickly but they may not do it properly and end up spoiling the child or rebellious child. It is smart to think about the right response and then execute.