$ man dash | wc -w
  10122

If you are running scripts most of the time bash is overkill (batch files don't need things like command completion, history and all that interactive stuff). Don't believe me?

  $ ls -lAh `which bash`
  -rwxr-xr-x 1 root root 1.1M Jun  6  2019 /bin/bash

  $ ls -lAh `which dash`
  -rwxr-xr-x 1 root root 119K Jan 25  2018 /bin/dash