Stand up is simple to those who don't want to do the work. To some it boils down to the fact you simply get on stage and do your jokes until something clicks. To a degree that's it for real. Yup!
Now does that mean that zero effort need be paid to knowing a little something (or a lot of something) about yourself in the process of writing those jokes? Hmmm? Because you know...the more you discover and are in tune with yourself the more inclined you are to write jokes with you in them, that will save tons of time in spawning original material.