It does seem odd that the original post-simply asking if you'd cut someone out for being a single mother-has become 'would you become bosom buddies with a teenaged mum?' which is not quite the same thing.
There are many opinions on this, but many in this thread come, not from a perspective of experience but of assumption. Variously, it has been said that teenaged parents (we keep talking of mothers but my now husband was fully involved) can't support themselves financially, don't have a solid group of friends, lack life skills and so on but such blanket statements simply can't be applied and accepted as a universal description. My husband had begun his career (just) and didn't make a lot but what he did make he have to me. I did stay with my parents to begin with but paid them board and for all of my baby's own things out of the money my husband sent and I also gave them his child benefit as they were forever buying him things and caring for him while I took exams and so on. However, my Mum and Dad insist that they did no more than many grandparents would do anyway and, indeed, they are just as involved with all of our subsequent sons, with the exception of us living there (and they would have us if they could!!)
Taking the teenaged motherhood out of the equation, I genuinely find it quite sad that so many people will discount whole groups of people that could enrich their lives in some way or another based on one aspect of their circumstances. That enrichment does not have to take the form of close friendship, of course. I recall one lady whom I met only once in hospital. I had my new baby, my husband had gone home and it was my first night as a mother. It was so overwhelming-which is an emotion that I am sure transcends age-and we spent an hour chatting and laughing and reassuring each other. She was more than twice my age and we probably wouldn't, in every day life, have had a reason for our paths to cross. I still remember that night fondly: she didn't blank me for being a teenager. I don't even think she commented on it. Similarly, the person I spoke to most often in the playground when my oldest was in primary school was the grandmother of one of his class mates. We were friends-genuine friends-for years afterwards, she was a complete scream yet old enough to be my own grandmother. I always think that a shared sense of humour has no age limit.
Isn't the world a bit too full of judgement and prejudice to be applying it to the age at which people become parents?