Human males do invest considerably in their offspring, where according to PIT this shouldnt happen. Cannot explain why men invest in step children who do not have their gene or why women have one-night stands! Issue is that it is deterministic and we have the free will to do as we please.
Theory justifies sexual inequality- men allowed to invest less and be more promiscuous, women are not allowed to do this - issues in power, childcare and choice - perhaps women are only dependant for resources because they want more equality- if they had more financial independence and power would female choice be similar to male choice??
We cannot presume what was adaptive in the EEA as we have no emperical evidence to back it up = speculative - we dont know what the childcare arrangements were or what type of PI existed - no way of retrospectively discovering this
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