Upsetting others
If you want things to change, you will be upsetting a certain group of people.
For some, life is good as-is. They are happy with the way things are. They do not seek change. They cling to the status quo. They will spend vast amounts of time and money to that end.
Meaning, they will fight you. Passively or aggressively, they will resist.
The lesson is this: if we work for change, we cannot keep everyone happy. We have to accept this.
However, if we’re successful in making things better, those who once fought us might acquiesce. They could even become our partners, allies, and advocates.