I suppose a bit of clarification is in order.
I am an adult. I can do what I want. I have a job, and the money I make doing that job goes to pay for household bills, groceries, gas, and so forth. Nothing strange there.
I could spend household money on whatever I wish, but it wouldn't be long before I was sitting in the dark, hungry, and going nowhere because I was out of gas. Nothing strange here, either. This is life as we know it.
I also have a small, seasonal job on the side doing some yard work for a guy I know. That money is my money, to spend as I wish. My wife is a wonderful woman, very understanding and supportive. She lets me spend my yard money on whatever I want, but I assure you that beer and brewing is not my only hobby -- not by a long shot. The problem is that each of my hobbies requires a bit of money, and all together they can get quite pricey.
So when I say she won't "let" me brew more often than absolutely necessary, it's shorthand for "She would let me brew if we could afford it, but because the power bill was so high this month, and because I spent my yard income on this other hobby, and because I had to put a new battery in the car last week, she has suggested that perhaps now is not the best time."
I'm an adult, and I could spend whatever I wanted, when I wanted. Except that if I let the power go out or the fridge go empty or the gas tank go empty, it's going to hurt a lot worse than not getting to brew this weekend.