most programmer will stop at age 35 and become management level.kinda wastefull because experince can speed up deployment and debugging.
That's not going to happen to "most" anything. There are always fewer spaces at the next level up the pyramid. Usually drastically so. What's the "programmer" to "manager" ratio where you are?
(Okay, I'm drafting a business plan on the side for a consultancy. I am hoping the non-programming job will allow me capacity to work outside my liberal flexitime hours. All advice welcome)