I'm banking on this. I don't really know anyone younger than me at the moment that writes C++. Best-case scenario I'll be in-demand. Worst-case when my grandchildren visit me at my cardboard box I can tell them spooky bedtime stories about SFINAE.

What niche market? I work for a hardware company writing C++ code and my company literally has a dashboard for managers that shows employee's token usage. My manager warned me that my low usage will reflect poorly on me during performance reviews later this year.