You won't be seeing your kids on a regular schedule. I am about to get out of the regionals for that very reason. Too much time away. At first, having a minimum of 10 days off per month (my contract) sounds great since most people have about 8 off per month in the real world....however, what they should ask you in the interview is "how do you feel about being away 20 days of the month?" That would be more accurate. All of this will vary by contract and your tolerance level, but it is not a great place to raise a family. On top of that, if you have to commute, kiss even more of those days bye bye. But people have been doing it for years and years. The divorce rate is high and I can see why. Hope that doesn't depress you, but it is the reality. (oh, and the pay sucks for the most part)
Good luck with your decision.