Don't send a person, send a blueprint and some way to raise and teach a first generation. We don't have to get there ourselves as long as our "children" can.
And that "some way" would be?...
In all likelihood it would take a fully sapient AI with a humanlike body puppet to raise a human being. At that point, what would be the point? Just accept these sapient spaceships are as good as our "children" as meatbags would be. And of course, since we're talking about sci-fi tropes here, there's always brain uploading.
Also, you're not considering the moral implications of sending a bunch of babies to live or die in an alien planet, in what are likely to be extremely limiting and harsh conditions. Whether you personally care for such things or not, a society that can simply ignore them is unlikely to send anyone anywhere, for the simple reason that this entire project requires a lot of people putting other objectives before their personal interests for a long period of time.