[Shared404]

You have causality backwards.

It was believed that since they were not the same thing it would be possible to safely raise someone as an arbitrary gender despite that not being the case.

The failure is in that both gender and sex are biological characteristics, and at that point in time Money believed that gender was strictly social - which is _clearly_ inaccurate.

In short - Reimer was forced into the life of being a trans person, despite having been born cis.