Being the spokesperson for someone else's life

Everyone in my life (including myself) has experienced one "big death" in their life, the kind that changes everything. Something I've noticed is that, whenever the dead person's name comes up, people start asking these hypothetical questions. "Do you think if ______ was still here that they would have liked that movie? Do you think they would've liked that person? What do you think _____ would think of today's politics? Do you think they would be MAGA?" I once accidentally did this to my husband. "Do you think if ______ was still alive that she would like me?" He got really quiet and eventually said, "I don't know." And honestly I feel the same way when people ask me hypothetical questions about dead people. They're not here anymore, so how could I say? I really don't know; nobody knows. And, on a larger scale, am I really the right person to be the spokesperson for somebody else? Would they even want me to speak for them? My mom was the worst about this after my brother past. She…