If it were a choice, a real choice? If I'm being honest, I would be puzzled, slightly skeptical, and slightly in awe.
I know that at 20 I was nowhere near ready to have a child, let alone two, and I would have missed out on some of the great adventures and self-knowledge of my life. I would also not have given myself the space to find my wonderful partner and husband, who is my lodestone.
But I can say that everyone I knew who had kids at 20 didn't do it out of absolute choice, but by accident. For some of them, it's worked out well; for others, less well. But I knew these girls before they got pregnant, and they had dreams and hopes and aspirations that they never got to fulfill.
If you do it by choice and live the dream that you have after two kids by 20, again, I am puzzled and skeptical and in awe. Several of the women I know who had kids by c. 16 are great mothers and live happy lives--just not the lives they dreamed of beforehand.
But if you're looking for honestly, on a personal level, I am very, very glad that I wasn't a teenage mother. I wouldn't have found the joy that I have, and I suspect that I would be both a very good and a very frustrated mother,