They say that being a stay-at-home-mom is a 24/7 job with absolutely no vacations, sick days or breaks. While that rings pretty true to this SAHM, I also feel like that should be a given for any parent, regardless of whether or not they stay at home and regardless of whether or not they identify as "mom" or "dad." Sadly, society doesn't necessarily agree, and in cisgender heteronormative relationships, the burden of most parenting responsibilities falls on the woman. If you're a stay-at-home-mom, this is almost definitely true, but there are things grown-ass men do for stay-at-home moms that quell the tides of every gender stereotype that contributes to the collective "we" thinking a mom's job is parenting, and a father's job is anything but.
Now, this is the part where I concede that every family is different: what works for one couple might not work for another. The constraints of a working parents' job will necessarily limit what he or she will be able to do when it comes to everyday household chores and childcare. This is where I also clarify that, yes, when you're a SAHM, you'll probably (by default) do the majority of the housework and child-rearing. It's really just a matter of logistics and the number of hours in a day, and less about patriarchal strongholds that keep gender stereotypes alive.
Where I take umbrage is the idea that a SAHM's job is 24/7 with no vacations, sick days, or breaks, while her working partner's job has a start time and an end time and when end time arrives and they're home, their work is done. No. Hate to break it to you, would-be Don Drapers of the world, but your job is 24/7 now, too. Because you're a goddamn parent.
The only difference is that, unlike a SAHM, a working parent has their job split between two places and, of course, that is difficult. Your mindset has to shift and your patience (probably) has to be increased and you have to dip into your energy reservoirs to continue to work you do as a parent. I'm sure, for some, it's disheartening to work really hard at a job outside of the home for 8, 10, 15 hours even, only to come home and do more work. But your partner, who has been home all day managing the house and making sure your children are happy and healthy (the latter of which is basically a full-time commitment in and of itself: children are basically adorable little self-destruct buttons with no concept of fear or thoughts of bodily harm), is not asking you to do anything she isn't doing herself. Basically, every parent has it tough and it's a difficult job for all involved, whether they stay at home or work outside of the home. Parents lucky enough to be part of a parenting team, need to work together to make all the difficult aspects of parenting, easier.
So, even if a man is not actually able to do all the things on the following list, due to the particulars of his job or what he and the mother of his children have mutually decided works best for them, there are still things every grown-ass man is willing to do to ensure that his SAHM partner isn't parenting by themselves. Most importantly, a grown-ass man is going to ask what his SAHM partner needs, if it isn't on this list, because, hey, you guys are riding the parenthood train together.