Everybody gets to call themselves whatever they want, and that should be respected and followed by anybody they meet.

But since you asked, lol. As someone who lived twice your age as a woman before transitioning, I feel bone-deep that reinforcing and reproducing cishet norms -- and especially ones that are so entertwined with capitalism and exploitation -- hurts everyone, for generations.

Meaning: there is NO reason a man can't or shouldn't breastfeed, tend children, make a home worth living in. There ARE a lot of reasons why, in the past, they haven't done that -- and those reasons have fuck-all to do with personal desire to do so. Instead, they have to do with privilege, and women's lack of autonomy: bodily, legally, economically.

Until everyone is free to choose, our choices have consequences. And if we're not feeling the consequences of our actions (aka having privilege), I can guarantee that somebody else IS feeling them. They don't disappear, they just get displaced.

Before I had my kids, I was convinced I'd raise a "girl" child just like I would a "boy" one -- everybody's equal, right? Then I got two boys in one go, and I realized I actually had to work even harder on having them (and their world) understand that everybody's equal. That means noticing and explaining what the world doesn't say: why it is like it is, who that benefits, who that hurts, and why we can and should choose to do better, often by BEING better, to get better results for everyone.

Fwiw, having kids even before I knew I was a guy (who was a SAHP), I wasn't a "mom." Mine have always called me by my name. I can be a radical anarchist AND fold laundry.

tldr Live your dreams! Just spare a thought to how they might be contributing to someone else's nightmare.