People without children do have the freedom to do things that caring parents with dependent kids can't - to work long hours, to travel frequently, to relocate, and to do all these things on short notice if necessary. In return, they can achieve positions that devoted parents can't.
Around me I saw women overworked and underpaid, doing men's work at half men's wages, not because their work was inferior, but because they were women.
So much time is wasted on trying to be better than others.
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