In Viking culture if men died in battle they would go to Valhalla (hence why they would make sick and dying men go to the front lines to die). People who didn't die in battle went to Helheim. So what happened to the women back at home who died? Did they automatically go to Helheim for being women?
Here is an excellent answer from /u/Steelcan909 about how we don't even know if Early Medieval Scandinavians even believed in the concept of a 'Valhalla' at all, let alone all the modern myths we've kind of invented around it.