Although like a Muggle they can't perform magic, a Squib is often far more integrated in the wizarding world. For while a Muggle is as Muggle can be, with Muggle family members and, well, Muggle everything, one of the main differences with a Squib is that they're related to a witch or wizard, just without the magic.

Can a Muggle gain magic?

On a rare occasion, non-magical parents (muggles) can produce magical offspring, called muggle-borns. ... Lastly, but critically, when a witch/wizard and a muggle have children (i.e.half-bloods), they almost always inherit magical ability.

Can a Muggle become a wizard?

Muggle-born is the term given to a witch or wizard who is born to two non-magical parents. Their magical abilities do not seem to be at all affected by their Muggle parentage — in fact, many Muggle-borns have been among the most powerful witches and wizards of their time, such as Lily Evans and Hermione Granger.