It's always a great way to get a better understanding of things but at least just poking around assembly a bit once. You do not have to make a project or anything big, but do not be afraid to check it out.

I would imagine that ARM1 would be more approachable than just about anything else.

I understand that there were only 14 different instructions in the original design.

"The 386 has about 140 different instructions, compared to a couple dozen in the ARM1 (depending how you count)."

https://www.righto.com/2015/12/reverse-engineering-arm1-ance...