Oh, I'll agree it's not as simple as just that - we might want to look into the status of other mutant children on Denva? maybe put together a whole school for mutant kids, even? I dunno, lets of questions there, but it's better than 'Eh lets just ignore the problem, it seems hard to solve'.
Again, no exposure to other people, and spending their entire life on Vita's ship. Where exactly are they going to go? What else are they going to do?
Much better to raise them on a planet with other people, and maybe take them on the occasional vacation across the solar system, or something.