You don't have experience from corporate environment. Oracle is very much present, alive and kicking there, in 1000 and 1 little or big applications, sometimes even out of convenience and cost (is you have just 1 DBA team supporting oracle, adding even 1 postgres to production system could be a cost nightmare to support and manage.
And SQL DBs are not going anywhere in next few decades.
And SQL DBs are not going anywhere in next few decades.