Let first explain what degeneration is. Degeneration is any action that brings short-term benefit only to the subject(you) and does no good to anyone in the long run. Let's move on to the facts now. 1.There is no situation in which the act is necessary. Reproduction can be obtained through in vitro ferritilization.2.Opportunity to get STD, risk of heart attack, cancer 3. Addiction, as a result of which you get used to a certain amount of it, so that thing does not make you as happy as you are unhappy without it. This can lead to depression. Also you are left with a lack of energy, which you would otherwise spend on more constructive things. Some people will come here with the statement that everyone has the right to do what they want. The problem with that is that every moment that is spent in doing degeneration is a moment that is not spent doing something smart and useful for the rest of society, and doing something useful is something that is crucial for the society to survive. The main problem is when someone promotes degeneration without knowing the consequences. How can this be prevented? Firstly with warnings. Tell that subject what I just told you. Thus at some point it is possible to change the future.