Homemaker? They might think that's suspicious since you're single, but then surely there must be unmarried but living-together couples out there in which one of the two doesn't work, so maybe it's not so odd that it'll get flagged.

I don't understand what they're going to do with this information. Surely it doesn't get listed on your passport. (I haven't examined the new RFID ones yet, nor do I have any idea what data the chip contains.)