imagine123
Dreamer
As a man, I'll speak on behave of all men and say no. There's no conceivable reason why a man would ever want to read a story staring a woman. I mean, that's silly. Would she just be making sammiches for 400 pages?
You'd have to be very descriptive of the sammich-making process to last 400 pages. Maybe change up the setting. Introduce conflict. You could make it a whole quest. A woman goes to make a sammich, but there's no ingredients. She must go to the store. But it's in the middle of the zombie apocalypse, and plus there's a bounty on her head because she pissed off one of the leaders of a roving band of marauders in her early sammich-making days (she can't be born with perfect sammich making skills, you want her to be a Mary Sue?)...Luckily, she's very handy with a butter knife and a variety of rotten condiments. Can she get to the grocery store and back before her husband comes back from his own weapons-scavenging (because of course he's doing MAN stuff)?
Serious-face, you're putting the cart before the horse. I call ditto on all the people who are saying don't worry about publishing if you haven't gotten the story written. I don't think about publishing at all.
Just get it written and worry about everything else later.