When designing a modern space, the first step is to get rid of (or at least hide) any unneeded clutter. Once the room is cleared, add a few multifunctional pieces. Be sure that every element you bring in has a clearly defined purpose in addition to driving home your modern aesthetic. Carefully distribute items throughout the room so that it feels balanced.
A well thought-out spruce-up of your bathroom can actually be a big step towards creating a harmonious home. How better than a well-designed shared space, to show how much the different generations care for each other?