When a service refuses to start, the instinct is to blame the service. Usually, the service itself is fine, and something around it is broken. Day 9's dead MariaDB was a clean example of exactly that.
Source: [Dev.to](https://dev.to/ndcodes/100-days-of-devops-and-cloud-aws-day-9-a-database-that-wont-start-is-usually-a-permissions-1cpk)