By Alexis Benveniste
Bloomberg News
Hotel spas were once sanctuaries of adults-only serenity, where frazzled executives and exhausted parents could escape, leaving chaos outside. But step into that same tranquil space today, and you might find a different scene: a mother and her 12-year-old daughter in matching robes, preparing for side-by-side massages. Mom opts for deep tissue, while her daughter enjoys a gentle “mini-me” massage. Nearby, a teenager waits for a specialized treatment that targets muscle tension caused by her phone use.