dont worry about your keiki's if you want to remove them then jsut let the roots grow a little longer. they will be very easy to remove, if you cant just take them off without any tools, then gently use a sharp knife, just be careful not to damage the plants if you do.
when i have removed keiki's from my den. nobile i just treat the keiki's like i treat the mother plant and they do fine.
you can also just leave them on if you wish
in anycase then i definately think you should give keeping them a try. you will be just fine.
edit:
oh and i always spray my keiki's with water everyday ( at least when its sunny) not sure if that is the right way to handle them or not, but they seem to grow longer roots that way.. but then again, first time im trying to keep my keiki's on my plant so it might just be because they are getting more time there