Some relax and wait to use this or that CMS or framework and smile. They know nothing about the code development or structure. The day they witness a little bug, they're long dead before their dying day because they don't know where the code block to debug is or where to even start debugging from.
Coding culture is dying everyday. Look around and see many website adverts in our streets. 10,000 for a website. They just install scripts and change this or that CSS and there is a website. Ask them to make A behave like B or C like A and they will tell you that's not possible. The theme will not permit that. That becomes an issue between their client and they.