It must be quite a bizarre situation to be in.
If your father (and presumably mother) is telling you that you’re a target, you need security, and there was a tacit agreement by your grandmother because the security was/is paid for privately after polite protection was removed…
Then you’ve your uncle saying it’s absolutely fine and not needed, plus you see your Aunt Anne, Uncle Edward and Aunt Sophie only needing security when on official visits, but living in secure royal estates.
When you think about it logically, it’s a very bizarre way to live.
Even getting a job must be weird. A balance between “No, I’m just a normal person so I just want a normal job and be treated normally” and “But my Granny is the Queen so I’m expected to participate in these annual events…”