In 2014 Robert Martin claimed that number of developers doubles every 5 years and says:

As long as that growth curve continues there will not be enough teachers, role models, and leaders. It means that most software teams will remain relatively unguided, unsupervised, and inexperienced. [...] It means that the industry as a whole will remain dominated by novices, and exist in a state of perpetual immaturity.

Not sure if the data can be confirmed or not, but if that's the case it will be difficult to maintain the best practices in our industry.