Dutch Bros is a fast-growing coffee chain that consumers love.One of the hardest areas to invest in is consumer discretionary goods. Consumer shopping patterns and preferences can change frequently. Macroeconomic factors can also affect demand.Right now, there are two completely different narratives being written among leading coffee chain companies, Starbucks (SBUX -3.64%) and Dutch Bros (BROS -0.68%).While Starbucks grapples with decelerating growth, its smaller rival is thriving.Let's dig into why Dutch ...