Kids age for home choice?

[RainbowRiver]

Is there an age set down for when kids can choose where and which parent they want to live with? Or at least what is considered an acceptable age?

issues are creeping up with my older kids, xdh is a tool (and that's putting it nicely). We have 50/50 shared care now, but I don't believe it's working at all. He cannot be bothered to give then his time, appears to not care he rarely spends a decent amount of quality binding time with them.

i have a list a mile long with issues, all of which we are meant to be addressing tonight when we meet up. Like usual, I don't see any point as he will think everything's fine, will say he'll think about what I've said... And all will be forgotten.

trying to work out what's best for the kids, maybe upping care arrangements or a huge overhaul etc in living arrangements