Cream trousers used to mean one thing, a pair that crept yellow by the second wash and showed every crease from sitting down for ten minutes. That has genuinely improved. The fabrics around now hold their shape better and the colour itself has split into warmer, softer versions rather than the flat ivory that used to wash everyone out, and on the whole that is a better situation to be buying into than it was a few years back.
Before you buy, get your hands on the fabric and give it a proper scrunch. If it springs back without deep creases, it will survive sitting at a desk or in a car. Hold it up to a window or a bright shop light too, because cream is the one colour where you find out the hard way whether it is lined, and an unlined pair in a thinner cotton can go see through in a way that is fine at home and not fine outside. Check the waistband sits flat against you rather than gaping at the back, and look at the hem length while you have shoes on, since cream shows a scruffy, uneven hem far more than black or navy ever will.
They are the wrong choice for anything genuinely messy, a long train journey with coffee involved, a day near paint or oil, a toddler with sticky hands. I would not reach for them on a day I knew I'd be sitting on grass or leaning on a kitchen counter, because cream picks up marks that other colours simply absorb and forget about. They also do not love being paired with anything that sheds colour, so dark denim jackets, new black tops that still bleed dye in the wash, and leather bags with unfinished edges are all worth keeping a bit of distance from until you know they are properly colourfast.
Over months, cream trousers age depending entirely on how you treat the first few wears. Wash them separately to start with, inside out, on a cool setting, and avoid tumble drying since heat is what sets a stain permanently rather than lifting it. A fabric shaver after a few wears keeps them looking newer for longer, since any bobbling shows up more on a pale colour than a dark one. Treat any mark the moment it happens rather than waiting for wash day, cold water and patience do more than any stain pen. Looked after properly, a good pair earns years rather than one season.
If I were starting from nothing, I would pick a soft, slightly warm cream over a stark white toned one, it forgives more and goes with more, and it never looks quite as unforgiving under artificial light.