Reasons for Resistance

"...change creates anxiety and fear. The current state has tremendous holding power, and the uncertainty of success and fear of the unknown can block change and create resistance......even when impacted people and group's self-interest and belief systems are aligned with the change, the uncertainty of success and fear of the unknown remain significant barriers to change..."
Prosci, 2022d

This is shown in diagrammatic format:

(source: Prosci, 2022d)

Some other drivers of resistance include
"... - the impact on their work
      - the credibility of people communicating the change
      - personal factors, including finances, age, health, mobility and family status
      - the change's alignment with their value system  
      - the organisation's history of handling change..."
Prosci, 2022d)

NB
"...why individuals resist change varies at different levels of the organisation. Executives tend to resist change due to a disconnect with their strategy, financial objectives, or compensation. People managers typically resist change due to lack of awareness, loss of power or control, and overload of current responsibilities. Employees are often resistant to change due to lack of awareness of why the change is happening, not understanding WIIFM (what's in it for me), comfort of the status quo, and fear of the unknown..."
Prosci, 2022d)

These are spelt out in more detail the following pages