In the 35 years that i have owned a house the trends have changed many times. We have had clutttered rooms, colourful rooms, curtains, blinds, nets, magnolia, Laura Ashley floral...how we decorated didn't so much get dictated by a trend, but rather what our lifestyle was at the time. And money of course.
So our newly wed home was cluttered & messy, with lots of mismatched furniture donated from various relatives, throws, lamps and spider plants.
The parenting years brought colourful (washable) walls, heavy duty laminate flooring, leather sofas, toy boxes, practical blinds and a lot of 'stuff'. The Ikea years 
Now with older teenagers the walls are a mix of magnolia and greys, comfy sofas, soft flooring in a mix of greys and black, no clutter, and lots of lovely accent colours of yellow, purple, lime green (not all in the same space). It's peaceful, calm and uncluttered. And better quality because of more disposable income.
I love my home, I don't care if no-one else does and I don't care how my friends and family decorate theirs.