So what if I was the oldest guy there. I still learned a lot about Enterprise Angular architectures with Nx Monorepos, Strategic Design and a bunch of other interesting topics.
The younger crowd there was part of a different generation, remaining glued to their mobile phones during breaks and lunch, staring the whole time at their open laptops while the speaker gave his workshop.
As I always say and live by as well, "You're never too old to learn new stuff!"