[HPforGrownups] Re: The Dursleys:

[Magpie]

No: HPFGUIDX 167535

Jordan:
> No, she announced that she is not a squib, but that "that is a very
> good guess". Which seems obvious enough anyway since a "squib" as such
> is a non-magical person born into a magical family, and we know that
> her family was not magical. We do _not_ know that she's not a witch.

Magpie:
She said "She is not a squib. She is a Muggle." She said she is a Muggle, 
not a witch.

Jordan:
> We might logically assume that, because otherwise why would she be
> bitter. But, consider this; if she is the older of the two sisters,
> she might have rejected it out of, say, fear that her parents would
> not have approved, which would have added an element of regret for
> that decision to her bitterness on finding how proud they were of
> Lily.


Magpie:
At which point she could change her mind, since she would still be a witch. 
Rejecting Hogwarts does not remove your magical powers or ability to do 
spells. You're just not well-trained. But Petunia's parents would have been 
approached regardless when Petunia was 11 if she were a witch. But JKR's 
quote does call her a Muggle, so it wasn't an issue.

-m