The reason you should put Dawn Dish Soap in your toilet is because the Dawn Dish Soap helps to dissolve and break up any thing that can be lodged in the toilet causing a clog.
The Dawn Dish soap in the toilet also helps keep the toilet clean as well.
The reason you shouldn't sit on public toilet seats is because public toilet seats can be unsanitary and contain germs and bacteria that can be passed onto you when you sit down on the toilet seat.
Toilet seats in public are cleaned but the toilet seats are not cleaned every time someone sits on it.
You can also use toilet paper or toilet seat covers to keep bacteria and germs off of you if you need to sit on toilet seats in public.
Washing your hands after peeing is necessary if you've touched your penis or wiped your vagina for example.
Also when you use the toilet and bathroom facilities you touch other germ harboring things such as toilet handles, toilet seats, sinks, doors etc.
So you should always wash your hands even after peeing especially when in a public restroom.
Human urine is actually pretty sanitary and sterile when it leaves the body.
However human urine does contain some bacteria as it's a waste product from the body so it can make you sick or someone sick if it sits out in the air and then turns to ammonia.
If you sit in someones pee then what most often happens is nothing and you just feel grossed out.
Most times the pee you sit in is sterile and nothing is in it that would cause you any harm.
However in rare cases the pee may be contaminated and spread bacteria and infections to you.
You can spray Lysol on a toilet seat to disinfect it.
You can also disinfect a toilet seat by diluting some bleach in water and then wiping the toilet seat down with the bleach and water solution.
Another way to wipe down a toilet seat and disinfect the toilet seat is to use some Lysol disinfecting wipes.
Wiping the toilet seat does help some to get rid of germs.
However unless you wipe the toilet seat with some cleaner and disinfectant then the germs won't all be wiped away.
Bacteria can go through toilet paper as toilet paper is porous which allows things to pass through including bacteria and germs.
If using a public toilet or someone else's toilet you should cover the toilet seat with some toilet paper to help prevent the spread of germs to your body and prevent your germs from getting onto the toilet seat as well.
Although germs can get through toilet paper it helps create a barrier between you and the toilet seat.
Or if the public toilet has toilet seat covers you should also use those toilet seat covers as well.
Soft toilet seats are considered unsanitary as they can collect and harbor bacteria and they are a bit harder to keep clean.
However if you do use soft toilet seats and wipe them down and clean them with disinfectant cleaner often then they should be sanitary.
But hard toilet seats are easier to keep clean and harbor less germs and bacteria.
While pooping the toilet seat should be down so you can sit on the toilet seat.
If you're a man then you should lift the toilet seat up while peeing if you're standing up but for a woman you should sit down on the toilet seat while peeing and pooping.
Toilets in Italy have no seats as it's seen as more hygienic to have seat free toilets when stranger's are sharing the same toilet.
It's seen as unsanitary in Italy for strangers to share the same toilet seat so they don't have toilet seats in Italy.
Public bathrooms in Italy usually have seatless toilets and you usually have to pay a small fee for the service.
While using a free bathroom may sound tempting, know that they're usually dirty.
It's worth the small fee to be able to use a clean bathroom!
France, Portugal, Italy, Japan, Argentina, Venezuela, and Spain: Instead of toilet paper, people from these countries (most of them from Europe) usually have a bidet in their washrooms.
A bidet like a toilet, but also includes a spout that streams water like a water fountain to rinse you clean.
While today the bidet has somewhat fallen out of use in France, it has been adopted as fundamental part of life in Italy.
In fact the bidet is now so ingrained into Italian culture that it's a legal obligation to put a bidet in every bathroom that is built on domestic or hotel property.
When you are traveling in Italy you will see strings hanging down the wall over tubs and shower stalls.
This is actually an alarm system required by building code, especially for hotels and other places renting out rooms or apartments to travelers.
Bidets are found in pretty much every Italian home and hotel but are seen as a little too fancy for public restrooms.
(Though even that is not unheard of).
They are almost always standalone bidets, which are located next to or close to the toilet.