Yes. My experience is that most 11 to 12 year-olds are in a 'hyper rational' phase, where they have a level of cognitive development that is not matched by any emotional maturity. They over-emphasise free will, the power of the will, of rationality and technology. (Some people never seem to grow beyond this stage). Perfect seed-beds and advocates for utopian visions, such as transhumanism.
Most girls (most children, I think) mature emotionally as puberty hormones take hold and become far more empathetic, relationship-focused and self-aware.
That gap between puberty at 11-13 and a desire for sexual relationships is usually a few years. Between that and ability to participate in mature relationships even longer, likewise adult cognitive development and understanding of risk (happens at around 25).
So the idea that a pre-pubescent child, at 10-12, could understand the implications of a choice that will affect their emotional and sexual development and weigh up the risks and benefits, is pure bunk.
The idea that adults might look back on their own hyper-rational yet emotionally immature 12 year-old state and dream of a simpler world, in which sex, emotions and relationships hadn't gone and complicated everything, forced them to relate to others and others to them, instead of allowing them to remain free to pursue their own insular, linear, utopian path, is unsurprising.