Lack of Hogsmeade Muggle Protection

[erisedstraeh2002]

No: HPFGUIDX 58303

It has recently struck me how odd it is that Hogsmeade appears to 
have zero security against being spotted by Muggles, given the other 
Muggle protection devices we see employed elsewhere (tap the bricks 
with your wand to open the gateway to Diagon Alley; run through/lean 
against the King's Cross barrier to get onto Platform 9 and 3/4; the 
inability to apparate or disapparate into Hogwarts).

It seems as if there's nothing to prevent a Muggle from wandering 
into the Three Broomsticks (where the Muggle might see not only 
witches and wizards, but also potentially goblins and ogres), or 
seeing the owl post office (thus revealing the wizarding postal 
method), or browsing at Gladrags Wizardwear, or looking at the 
wizarding equipment at Dervish and Banges.

It just seems to me with all of the concern about wizards staying 
hidden from Muggles, Hogsmeade is a big security breach.

~Phyllis
who is also wondering why Memory Charms aren't called Forgetfulness 
Charms