I've only been here 3 months but I've seen variations of this topic coming up again and again. It seems that there are vast numbers of women unhappy with their "lazy" husbands, which is quite shocking really. Obviously we never get to hear the DH's side of this, so it's hard to judge.
Would like to ask the OP - do you both work? I think that does make a difference. If you both work equal hours in equally stressful jobs, then sure, agree to divide up the housework and chlidcare. But most people on here, it seems to me, have a DH who is the main or only wage-earner, and if that's what he does he will consider that his role unless told otherwise.
It often sounds as if people don't actually sit down and agree who does what. You don't need rotas or things divided up absolutely equally, but if a man has got in from work at 7pm and is absolutely knackered, then, I'm sorry, he WON'T be putting the washing on unless you ask him to.
I used to have a female colleague who was very bad at saying No to extra work; she didn't want to be seen to be a lightweight. Eventually, she devised a stratagem: to say a variation of, "Yes, I can do this additional thing X you have asked me to, but it'll mean that, realistically, Y may be late as a result and Z won't get done at all." She got a reputation as someone who more than pulled her weight without taking on more than she could cope with.
This, perhaps, is what will happen. If the DH is working long hours as the main earner - and there is an awful lot of pressure on him to perform financially - then you're asking him to scale down his work in order to do more around the home or even have a day with the kids. If he's in the kind of job where he could do that, then seriously consider it. Could he work 4/5 of his hours? More to the point, how would you like him to be bringing home 4/5 of his current income? Could you adjust to that? If not, then that perhaps tells you a lot about your true priorities.
Yes, women - often unfairly - sometimes see men as feckless layabouts. But men - again often unfairly - can sometimes just feel like they are being treated as a meal-ticket. A little give and take is required, and lots of TALKING.
Planet Bloke out.