I want to second this. I'm 38 and I used to do some debugging and reverse engineering during my university days (2006-2011). Since then I've mainly avoided looking at assembly since I mostly work in C++ systems or HLSL.

These last few months, however, I've had to spend a lot of time debugging via disassembly for my work. It felt really slow at first, but then it came back to me and now it's really natural again.