Non sequitur. It's clear you are looking at only part of what happens and ignoring the parts you'd prefer I didn't mention.
So if I mow your lawn without your permission, I can send you a bill and you are obligated to pay for it? You "benefitted" didn't you?
1. I did not ask you to do it.
2. nor did I bring you over to do it
You asked us to teach your children every time YOU sent them to school. Unless you paid these teachers that taught your children directly you still owe for that. You could have home school or private schooled. Paying your share of property tax insures that these teachers get paid. Three kids education for 12 years guy...you still owe.
Can we now talk about the cost of maintaining the roads and parks in your neighborhood ?
If you are serious about mowing my lawn, let me know your cost. My current lawnkeeper is seemingly taking me for granted. Their work seems to be on the decline as of late