As someone who learned to think in MySQL, this is really true, at the time Postgres was a viable alternative too, only the tooling to get started reached me a little easier and quicker.

The major thing I advocate for is don't pick a NOSQL database to avoid relational dbs, only to try and do a bunch of relational work in NOSQL that would have been trivial in an RBDMS. Postgres can even power graph query results which is great.