There’s habits and events I need to track for informational purposes, like figuring out where I am in a practice or tracking something for upcoming dr appt. Requiring a goal makes that difficult. Identifying trends is good, too. Apple health looks at my data and says “you’ve been doing x this much more often during the last twelve weeks”. I may not have mastered my goal of reading every day or getting 8hrs sleep per night, but is my accuracy improving? Is the number closer to the goal than before? That can be really useful information!