Nothing is holding them back

Jonathan just pointed out two things holding people back:

The sad fact is there are people who are missing out on the opportunity to code because of the environment as-a-whole.

Not all people have the right circumstances to commit time to learning to code.

Or worse, people who make the effort to learn to code, only to be shut down by people who have this mindset of only certain types of people can code.

Prejudiced mindsets can easily discourage fledgling engineers.