We had to re-home 2 our first go round. The kids were really upset until I told them they could pick 2 new chicks. Unfortunately both those chicks turned out to be roos and may be re-homed. Depends on neighbors.
I was planning on going the
www.mypetchicken.com and paying the extra for pullets route. Money well spent IMO. But then DDs teacher asked if I could get her some hatching eggs and well, we may end up with more roos. Silkies though, so re-homing shouldn't be a prob.
Our 2 the first go round I didn't know for sure until about 6-7mnths were roos. DH and others were still swearing pullets at that point. Being more familiar with that breed this go round, I knew by about 3mnths. For this breed, Buff Brahma, later developing breed, the pullet/roo diffs for me are comb turning red earlier, coloring a bit different (darker gold with hints of blue/green to tail) and while the girls are all busy about the yard, the boys are close-by, but just sort-of watching rather than pecking/scratching around.
Re-homing wasn't the big issue I thought it would be. And DD was super attached to her baby. This go round I don't see any probs for the kids. Just explained choices are get rid of roos and keep girls or keep roos and have to get rid of all chickens when someone complains. They readily say get rid of roos.