Do you also think that if you don't have kids in school, your taxes shouldn't pay for public education?
If I don't have kids in school, I have not found an alternative way to achieve the same thing as someone who does have kids in school (an alternative that is cheaper, more efficient and easier on the environment).
If we don't have kids, humanity vanishes. If we have kids, but they don't go to school, everything will go to hell in a hound basket within the span of a generation.
In today's reality, most couples are expected/required to have both partners work, and we've yet to figure out how to solve that 2-body problem on a wide scale. More telecommuting would help, but many companies are still strongly resistant to it even when it's possible. The society that you live in needs the people living >10km from work to be able to get to work and I guarantee that if this wasn't possible anymore, you would feel the hit. If people could only get jobs at places within biking distance, unemployment would skyrocket, as would the number of unfillable job openings. The cascading effect of that would be huge. Have fun with that.