You push a button or turn a key - either way, all you need is one functioning hand to start the vehicle & make it function...
As stated, options such as Apple CarPlay & Android Auto, adaptive cruise control, hill hold assist, lane keep assist & blind spot monitoring, front & rear parking sensors, reversing camera, power tailgate, dual zone climate control and other similar 'bells & whistles' should feature much higher on your list of 'must have' features before something as trivial as push button start.
It's an Indian-assembled Hyundai Creta after all, not a ultra-luxury SUV like a Aston Martin DBX, Lamborghini Urus, Bentley Bentayga or Rolls-Royce Cullinan, where push button start is considered a standard feature...