All this talk about being disregarded, if not mistreated because familly issues can happen. Tsk, of course they do.
My only best advice is to treat children like they are not special snowflakes, cause nobody is regardless how much you care them. To let them know (the sooner the better) the reality they must face when they have to rely on themselves more and more as time passes on is way too important, a fact sadly ignored by many parents, one way or another. Trying to educate them about working without expecting being too much rewarded in exchange is the ideal way for make them understanding that work is simply a human necessity, and not a damn way for cheap luxury ("Did you wash all the dishes? Awwww, how cute! Here, have a candy!" "Did you sweep the floor, sweetheart? How nice of you! You can watch the TV all what you like now!" "Did you finished your homework!? Hooraaay! You're da best! Let's gonna have some fun in the theme park tod ..." "FOR FUCKING SAKE, NO!!! IT'S WEDNESDAY YET, WAIT UNTIL THE BLASTED WEEKEND!).
Of course there shall be times when you have to attend your children, behaving, quarreling or talking to them whatever troubles them. But seriously, not trying to look excessively harsh (to anybody this can happen, or in the opposite way too), just minding awareness when children can be too trouble, it is when is time to think how to lend them a hand. Let them cry or rage whatever trouble them, then gently ask what's their issue and trying to make a deal of sorts (because you WON'T have time to solve all their problems too, that's another important problem that many parents don't know how to deal with if they're not aware or they don't simply organize their own time).
You must gain their confidence, as much as they have to respect you. If they're too headstrong for whatever reason, you MUST hold him / her on the line. If simple, mandatory authority doesn't work yet, a simple slap in the face may work, but this is the ultimate resource I would rely on. Well, it never hurts to do that, but barely I guess ... this merely depends on the context, though.
In the end, you simply need to have fun with them though (equally if possible, but know that's just not gonna happen at all ...), so happy times for you and all your family. You may deserve it if working real hard for it, because it's all about that: simple, mere dedication for a better future for them.