HDDs and SSDs both fail but for different reasons, HDDs are mechanical and SSDs are electronic and have respective failures. Today's storage media has SMART (Self Monitoring Analysis and Reporting Technology) built into it which will report problems with these drives, available for both HDD and SSD storage devices. Most people won't monitor their disks and there are no idiot lights so it tends to be a complete situational awareness and loss of data for them. In my opinion an SSD's speed and storage ability far outweigh the spinning platters of yesterday's HDDs. Backups and monitoring are your defense points, if you're doing one or both you are far better off than doing nothing at all.