For many families, moving in with adult children seems like the perfect solution. Rising housing costs, health concerns, and the desire to spend more time with loved ones often make multigenerational living look like a win-win arrangement. In fact, nearly 18% of Americans now live in multigenerational households, a figure that has more than doubled since the 1970s. However, while some families thrive under one roof, many older adults discover that sharing a home comes with unexpected challenges. Here are seven reasons you might regret moving in with your adult kids in the long run.