The real truth
Everyone new to the Pega platform thinks that just by doing configurations in Pega platform, we can build; It is enough If we just learn all Pega platform features end to end, we can build anything on Pega.
But the bitter truth is many of the business use cases still cannot be done on Pega alone
If we are using vanilla JavaScript or Java, one can easily do the coding
But the hardest part comes when we are trying to implement non-Pega supported features on Pega
(rather doing them on plain java or JavaScript is far easier)