As a certified tall person I can confirm I am less willing to do things low to the ground. So sinks being too short seems legitimate. I do understand the other side (short people) have it harder though - if a sink is too tall for you then it's pretty much impossible to use.

Also, male sex is referencing being of the male gender it has nothing to do with intercourse. Feel free to question the legitimacy of the category, but the category itself is pretty clearly defined.