One cannot judge by age alone. I know many 17-year-olds who are very mature and responsible, and I know as well people twice that age I wouldn't entrust a pet dog to.In my humble opinion, any new parent or parents should put their child up for adoption if they cannot provide it with the fundamentals needed. Usually the state will step in to assist with food and housing; if this is not an option, new parents should be found. The child should not be put at risk.
Likewise, whether or not one is single or not should have no bearing. It is what the parent can arrange or maintain for the safety and well-being of that child. Of course raising a child is much more difficult for younger parent/s who are not yet really stabilized within society, so to speak. But there have been many young parents who manage quite well.
Really though, the natural parents of the child are the best in the long run; since there is state assistance available what should be looked at is whether the parent is truly capable of raising the child. It's a touchy situation; how and when and who would step in? Where would the line be drawn???
Something to really think about. The best thing, of course, is simply not to get into the situation to begin with! There are means of NOT getting pregnant.
And in no way, shape or form should a child ever be aborted.
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I ride the Stormcloud and the Night!