Builds healthy habits – No one expects to eat three cheeseburgers and fries and then go out and set a personal record at a track meet. Coaches encourage athletes to eat properly before and after races. You perform better and feel better when you have proper nutrition during training. A healthy diet allows you to perform to the best of your abilities, so when you are running track you tend to have a more healthy diet.
Promotes teamwork – Track is an individual as well as team sport. How you perform affects the team, especially in situations such as relay races. All four members are equally important in the race. Each plays a role in the team’s efforts to win. If even one runner does not perform at his best, the whole team may suffer or have to compensate to make up for his weakness.
In addition to this team bond at track meets, friendships are formed during practices. Runners are expected to train daily and have to endure workouts together. This forms bonds that help make the team stronger.
Things like running around the house will not be done as a kid, since as a kid you were way more energetic, but now as a young adult that may not be the case.
They can if they want to, but if they do they will infect whoever they are doing it with. No one can stop them. But if you are looking for a definitive answer then no, it is not okay at all because of the risk they are putting other people at. Especially because STDs are with you forever, they never go away.
Hope this helps!!