Blimey your cinema is posh. Mine's £14.99 for an adult!
On a serious note - we do go to the cinema but as previously posted, it tends to be for occasion cinema. So big screen movies where you need full surround sound, a mahoosive immersive screen etc. Plus Cinemas have now upped their game so you can have a glass of wine / beer / cider and a freshly made pizza whilst you watch the film.
I do tend to go to the er... more upmarket cinemas around me. We do have a Vue in Staines which is as cheap as £6.99. We went to see the Barbie movie there. NEVER AGAIN. People were just feral. Letting small kids wander around, shouting at them. I saw one pink velour tracksuited, high ponytailed woman with three kids just filling them pick and mix bags using her hands. Bleurgh. She eventually got thrown out for failing to control any of her kids.