Because the conceptual difference doesn&#x27;t exist for about 99.9% of people.<p>Also, most languages have no such distinction. For example in my native language Hungarian we either use the English word &quot;gender&quot; or say (the equivalent of) &quot;social sex&quot; and &quot;biological sex&quot;.<p>It&#x27;s a niche thing. I understand that some people feel sensitive about sex&#x2F;gender or the differences between transsexual&#x2F;transgender&#x2F;transvestite&#x2F;queer&#x2F;crossdresser&#x2F;drag-queen etc. But for the vast majority of the people this just isn&#x27;t a topic of interest.