The Status Bar is something I like to keep in view at all times since it displays pertinent information about my device including the time, my current battery level, and my current wireless signal strength — be it cellular or Wi-Fi.
Unfortunately, many apps hide the Status Bar from view when you might want to see it, especially when they’re designed to operate in full screen. Some apps even display the Status Bar when you might want to hide it. Sadly, Apple offers no configurations to alleviate these concerns.