I think that wasting time has nothing to do with gender, because today both men and women are dedicated to their things according to their interests. But time is very valuable and the truth is that most people do not know how to take advantage of it. As for young people or adults and the time they lose is relative. There are adults who are already retired and do not want to read, walk, talk, play etc and prefer to stay at home watching TV sometimes novels, documentaries or any program that does not contribute much to their lives and young people there are some who care about Invest your time in study, research, knowledge or simply video games, music videos, follow an artist in social networks and do not care anymore.
Thanks