I was a database consultant for many years, there used to be lots of DBA work, there's a lot less now - the hardware is faster, memory is cheaper, disks are SSD, so a lot of the hard parts of the job are less hard now, also databases are self tuning now (to varying extents). It used to be you'd need a specialist to just keep any application running, now it doesn't matter much. The only hard area left is large data warehouses, and there are few of those and the interesting part is the data engineering role not so much the admin part. The DBA role for these is pretty standard now. Also a lot of apps are moving to the cloud, so less work there as well.