It doesn't surprise me. Women are generally more likely to follow safety protocols. For example, they are more likely to wear seatbelts and ensure every passenger does the same. It is most likely related to risk taking, which is one trait where there is a statistically significant difference between men and women: women are more risk averse.
Socialization largely most likely. Look at the stereotype of boys being interested in touching crawling,slimy, and gross things while girls are repelled by it. For better or worse the susceptibility to that sort of revulsion would be linked to more handwashing.
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.
yes - bad joke in the vein of "male sex" - the categories are sloppily generated in the WHO example. But you are right - the sinks are in short supply...
It's probably a BS toxic-masculinity thing - "Only weak men need to wash their hands". I know that toxic masculinity is a controversial topic but I've met lots of folks who think this way and it is such a silly philosophical stance to take.
