Is it worth learning Assembler?

Question

assembler

Should I be a future electronics technologist?

Answer 1

The assembler is translated into machine code that the processor executes.
Even a basic knowledge of assembler will help you understand how computer architecture works.
Yes, it will be useful to study it at least at the level of "hello world"

Answer 2

for the horizons in the near-working topics - yes.
at work - you are unlikely to encounter.