Is electrolysis worth it for fine blonde hairs? I’ve heard conflicting things regarding electrolysis being effective for hairs that are blonde because they are harder to treat. They are especially noticeable in sunlight and fluorescent lighting. Is it worth it or should I continue removing them in other ways?

If those hairs bother you to the point of having to remove them in some other way, my answer is yes, worth it.
Whenever you find someone who has no doubts about how to do the job and about the excellent results you can get. In fact, I would say that the rate of regrowth is lower even than with terminal hairs.