Societies are affected by STDs/STI's in these ways.
An increase in the general risk of getting one. If they are already prevalent in society then the risk of getting one is higher.
A high cost to society for treatment. The more people have them the more people will need treatment which is costly for society.
Economic costs. Economically the society will not be seen as a valued and respectable society and this will impact on the economy of the society as other societies will be reluctant to do business with them or put any trust in them.
Turn off the conveyor or get it with a broom or see what happens when you get caught it might be fun!
As for question number 7 this is how you can be cool take it from someone who has had a personal experience with trying to be cool well for one just be your self and others can accept you for who you are or not accept you but at the end of the day you’re going to be worrying about trying to be cool and the people you tryna be cool for going to still be living there life not worried I pray this helps .