White color for interior may be preferred for many reasons. Room in white color looks wide, shiny and respectable. We need less electricity to light the house. Visually the rooms seem larger.
Sometimes it will be less comfortable. For example, if you specially like pets. Or children may like to "redecorate" surfaces with felt-tip pen.))
Often white color is used in high-tech interior.
Some another new ideas for your cosy home interior: