How Do Children and Adults Acquire Language?

I believe that our innate capacity as well as our environment allow us to acquire language (and sometimes if we're lucky, more than one). I also believe that there is a window of opportunity (the articles referred to it as the critical period) in which language could be fully acquired (with ease) when we are very young. This is why learning a foreign language is so much easier for a young child than an adult and why feral children will never be able to speak as we do.

My mother was a stay at home mom who spoke only Spanish so I spoke only Spanish until it was time for me to go to school. The little English I knew I learned from watching television and yet I don't remember struggling through kindergarten. My mother told me that once I was immersed in the English-only classroom, I picked up the language with ease.

I believe that children as well as adults need social interactions as well as a nurturing environment in order to successfully acquire any language.