A few notes:

It wasn't unsentimental to me, it just isn't something you can express in words.

I was responsible not because my mother pushed me to be, but because it is who I am.

We made the decision to not have an abortion and to accept adoption together.

As to the questions:

No, even with our families help this would not have provided the same quality of life for our daughter that she could get with another family.

We were both too young to be married. Even were it not a legal complication, we had already made one bad choice. There would be no sense in making another than permanently attaching ourselves to the other at an age where we weren't even the people we would eventually grow up to be.

One doesn't follow up a bad choice with another bad idea.