Growing pains are normal for young growth stocks.Restaurant stocks plunged recently after reports warned that people might not be spending as much as they usually do at their favorite restaurants. But what about where they get their morning caffeine fix? Coffee chain Dutch Bros (BROS -2.42%) is down 10% over the past month and 50% from its highs. The market didn't love its most recent update, but investors should take the long view. Here's why Dutch Bros could be a top long-term buy.It's all about a great p ...