[souprock]

I have 11 kids.

The first is the worst, because now your life is restricted by a child. The second has a small impact, because now it takes two parents to chase the kids. The third has a small impact, because now they can run in 3 different directions.

After that though, it is no big deal. The only thing you notice is when you have to upgrade to a larger vehicle. For me this is now a van with 5 rows of seats.

Everything gets more efficient as the family gets larger. If your vehicle choice drops from 30 MPG to 15 MPG as you go from 4 to 10 people, the per-person numbers have gone from 120 to 150. It's like that for lots of things: cost of a house, time spent shopping, etc. You get a bulk discount. Things purchased for the first kid can be used for the next. The tax situation improves too. With enough kids, you probably won't have to pay any income tax.

With just one, you have already lost your ability to wander freely and be left in peace. You mostly can't lose that more. At this point, you might as well enjoy the benefits of having a huge family.