I think that this manic of having everything disinfected is
allergies....
I agree with you. We are exaggerating in killing all the germs and bacteria.
That's why babies and small childrens takes everything in their mouth - to improve their immune system and become stronger in fighting against them when they will be adults.
Don't get me wrong I'm not saying that they need to play with used needles found on the street but if they are doing this (puting hands & objects in mouth) there should be a natural reason, don't you think?
Ok I know it's mainly because of the growing teeth, but not only for this.
Regarding the thread I think it's not (just) to disinfect the laundry, but simply to have it much much cleaner without additional tasks and additives.
I also agree with "mattywashboy" - everyone is free to perform its own laundry the way he thinks is the best for him!
And it's normal that different nations have different washing habits.
As for me you can wash your undies in the Ganges river if you like, you are free to do whatever you want. (after all there are people who do this over there)
If I would do this I would probably die hahaha

) (my mom was one of those who avoid me putting things in my mouth)
I personaly wash "whites" @ 95°C, light colors @ 60°C and all the rest @ 40°C, add detergent push the button and that's it.
Ingemar