Why we have so many Managers but small Leaders? The difference is incredible. It is rare case you one person combines both manager and leader. We all know these peoples.
At first - the most companies need really managers by company policies. Very easy - demand / supply. This is one of the important topics in a job interview. Recruiters very quickly understand who you are. Managers usually afraid leaders and never offer a job.
Second - it is enough to receive good theoretical education or get experience to become a manager. For some peoples, even managers, it is too difficult, and this is normal. But, what is necessary become a Leader? From my point of view the most important is - you have to be managed or mentored by the excellent manager or leader for a long period of time. Not short online courses, video on YouTube or TED! Can you remember the ones in your career? Very small amount of peoples can "understand" or "feel" leadership by themselves.
I'm lucky because I have had these persons in my life as an employee and as a freelancer. I understand how it is very difficult to be a leader!
Who are you? Have you good Manager or Leader in your career?