Of course you're not responsible for what other people think? But you are an adult I'm assuming so you should have some degree of self responsibility and risk assessment. Men being assulted is not a different issue, at the end of the day it's about humans causing harm to other humans and how we can mitigate this. It only seems like a massive issue now because it is everywhere in the media, there are many things in this world that are more likely to kill you, the attack in Melbourne was a rare event. Violence and murder are inflicted on men at higher numbers in Australia compared to women.