Hijabs are not a common sight in the most rural parts of this country
They're a common sight in Britain and no matter where you live, you should know that. It's not anyone else's failing if you don't.
However, it is perfectly right that some people wish to advertise their faith and there is absolutely nothing objectionable about that but why be surprised if it excites curiosity?
They're not "advertising their faith", ffs. They're living in accordance with their beliefs and culture. Why are you so unable to grasp that it isn't about you? They're not advertising anything to you. And you're not talking about "curiosity", you accused them of being attention seeking.
Why not see it as an opportunity to talk about and extol the virtues of one's faith?
Oh, so now your own insular outlook is their failing? They effectively owe you an explanation because you've somehow reached adulthood without realising hijabs are common in Britain? And without understanding that following their faith isn't about you?
Just stop it already. If you're serious about hearing all the virtues of Islam, stop attacking women who wear the hijab, stop centring yourself in their decisions and stop patronising them about the "virtues of their faith". Hijabs are part of modern Britain, there's nothing unconventional about them, they are about Islam and they aren't about you and your attention. It's nobody else's fault if you can't grasp this.