There are definitely great reasons to change up your living situation. Even if you’ve always liked your home, perhaps your job moved and the commute is a major headache, leading you to spend hours in traffic each day. Or you need to be closer to extended family members to help them or get their help and the distance separating them from you is a deal breaker.
Other circumstances can lead to dissatisfaction with your current digs. Maybe you’ve had a few kids since you bought it, tacked on a couple family pets, and there’s no room to breathe, let alone exist, without someone bumping into you. With small kids, it will only get worse because, well, they tend to grow. In this case, a move may be the quickest valve to vent that pressure.