If your family members refuse to go for family counselling, you can try:
Sharing your goals and reasons behind wanting to go for counselling
Sharing the benefits of counselling
Understanding their reasons for refusing therapy
Addressing their doubts about counselling
Suggesting a trial period before letting them decide if they are keen to commit for the long run
However, if your family is still resistant to the idea of counselling, attending adult counselling sessions as an individual first may be helpful. By showing a positive change in your life and sharing your counselling experience, your family may become more open to seeing a family counsellor.