More like: long-haired domestic dogs require someone to regularly groom their hair for them. They don’t have the instinct required to drive them to groom themse

More like: long-haired domestic dogs require someone to regularly groom their hair for them. They don’t have the instinct required to drive them to groom themselves as much as they need, so a long-haired dog left to their own devices outdoors will end up with hair mats and ticks they can’t reach to scratch off. Long-haired cats do not need the help of a human groomer to avoid these things, because they do have the instinct to chew off excess/itchy/matted hair. Scrum masters — backlog / kanban board groomers — are for junior devs, who haven’t yet developed any sense for what an approachable task size is; what their comparative advantage is vs others on their team; etc. Senior devs do have that experience — and it’s surprisingly portable between teams/orgs.