It makes perfect sense that some women would hate giving blowjobs - I find it surprising when women consider that unusual or that it indicates "issues". It's an excretory organ and yes, an area that requires extra maintenance in the hygiene department. I don't know... I could be wrong, but I can't help but feel some of those who have always "loved" it didn't really initially but felt obliged to act like they did. I was certainly repulsed by it when I became sexually active, but I have grown to enjoy it now. I don't imagine it being pleasant as a first or very early sexual experience for a girl - seems more suitable for a girl who's more sexually experienced. This is all just based on my opinion though.
Oral stimulation of a penis... I personally can't see how that in itself is appealing, but oral stimulation of the penis of the right guy... different story.
OP, best not to overthink it.