IF both parents manage to get along at least somewhat,
shared physical custody can be good for the child(ren).
My son lives one week with his mother, then one week with me. And yes, he hates it, but he would hate it at least as much, if not more, to have an "every-other-weekend-parent".
In our particular situation - and I believe this is similar to most other situations - joint legal with shared physical would not have worked at all. Luckily, GAL, custody evaluator, and judge agreed, and I ended up with shared physical, but sole legal.
Why joint legal doesn't work?
My son has been a daddy's boy from day one, and having strong morals and values, I am willing to compromise on his upbringing only so much.
With his mother's morals and values going down the drain (becoming part-time prostitute), living in different counties, her frequently moving, and just a different look on life in general, joint legal would be impossible.
1) Who decides where he goes to school with joint legal?
2) Who decides about medical treatment with joint?
3) Who decides about mental treatment with joint?
4) Who decides about tutoring with joint?
5) Who decides about where to move to with joint?
6) Who decides about which sports he plays, and where?
7) Who decides... and so on and so on.
And believe me, as vindictive as she has been, even with me having joint legal, it was one battle after the other. Just the total unwillingness to agree to anything but her having total control and no responsibilities makes joint legal impossible.
If you disagree, just answer the above 6 questions, assuming an ex who exlusively disagrees just to disagree, with no regards to what is best for the child, or what the child wants.
Shared physical? Absolutely!
Joint legal? Absolutely not!
Kent!