Given my own experience, I am sure losing weight is more difficult when we age. When I was young I weighed 50 kg. With my height of 1.72 m that hardly was a healthy weight and I often had black spots in front of my eyes when I rose from a squatting or sitting position.
After my pregnancy, this changed dramatically. I was content I had gained 20 to 25 kg and that I didn’t lose it all after giving birth to my son. My weight back then was between 65 and 70 kg which made me feel more comfortable with my body.