When I'm on holiday I make an effort to get out with my camera when the light is interesting - during sunrise/sunset or due to weather conditions. I don't spend the entire day creating unremarkable photos with an overhead sun, which is why most people's holiday photos are exactly that, unremarkable. I'd rather spend the day time enjoying my holiday doing holiday things. If I am taking photos during the day of something interesting, it's probably not out in direct sunlight, and if it is I'll try and come back when the light isn't as harsh.
Another reason why they're unremarkable is because they think they need a viewfinder, or a DSLR, or all these lenses. Light is far more important than the camera, and an overhead sun blazing down creates the worst lighting possible.