In a now-viral video, a customer buying car parts online declared that “tipping culture is out of control” after he was prompted to tip for his purchase. The video comes from TikToker L.G. Benito ...

Convincing everyone to adopt a new technology can be a slog at first. The humble microwave oven, for example, took two decades of lukewarm sales to reach just a tenth of U.S. households. But then came ...