Moomin, good post.
I agree that there is a difference between prejudice and tutting of the public out and about, based on no knowledge of the individual, and the honest truth of the statistics, in terms of outcomes for parents and children.
It is because of these statistics that most parents wouldn't wish very young parenthood on their children. Whilst we know that statistics are just that, we want to steer our children towards the things that statistically help them, such as education and away from things that might have a detrimental effect, such as smoking and drug taking (and please don't hear that as me equating having children young with smoking or drug taking).
So for those of us, who wouldn't wish young parenthood on our children as a top choice, for us and also for the very many parents who find their own children becoming teenage parents when we would have hoped it happened later, once it is happening, it is a fact and the best outcomes need to be brought from it. And many of the people on this thread show what is certainly possible because they have been good parents, they have brought up great children and with hard work, they have later been able to have a career and education that weren't possible whilst young parents. Things happened a different way round and may well not be what they would hope for their own children in their turn, but great lives can be led.
However, we also should remember that for some people, being young parents doesn't just change the order of events in their life, but removes permanently some of the possibilities and has impacts on them and their chilren for the rest of their lives - hence the statistics.
I wonder whether it is the age thing that affects the outcome on people's lives and on their childrens, or is it actually their approach and response to life. The people on here who have made a good life for themselves and their families as part of being younger parents, sound like the kind of people who would have had the grit and determination to succeed wherever they found themselves. That making of a good life (whatever that means) sounds like it's easier to achieve if you have completed your education from school, had freedom to locate where you like and work in what you like - ie as a free and easy late teen/early 20, so I have enormous respect for those who manage it whilst looking after babies and small children at the same time.
Perhaps there are other types of people too, who might lack grit and determination no matter what their age or circumstance. Being like that as a single teen might result in poor educational outcomes or poor work opportunities.....and these could continue through life. However if you are that kind of person, also being a parent means the impact won't just be felt by yourself but by your children too. It's not about age, but about attitude. And if you don't have determination before becoming a teenage parent, for most,the difficulties of being a young parent in terms of finances, employment, leisure and relationships can be enough to make mustering the necessary determination to beat those difficulties almost insurmountable. To me, it seems that very young parenthood can occur at just the right time to crush hopes and aspirations and self belief for the young parents themselves and for their children.
So after all that, I would hope to teach my children resilience and determination, no matter what circumstances they find themselves in and to know that they will always be loved, supported and believed in, and that doors are always open to opportunity. If they have children young, I hope we will support them and they will know that there is still a great life out there for the taking. And if they have children later or not at all, I hope they will still know that too.