Sure, it has its challenges, but we always thought sharing a room with a sibling would've been fun. We found a few inspiring ideas for shared rooms over at Real Living.
There are definitely ways to make sharing a room easier. For example, marking out private space in a fun way like the racing stripes above. Other ideas: using bunk beds, making the bottom bunk more appealing by making into a nook/fort. For girls, the article suggests matching twin beds and one striking piece of art rather than overwhelming the room with lots of pieces.
Would you consider having your kids share a room even if you have the space for them to have their own rooms? We would!