Not everyone is you.
Some people have fewer hours in the day as they just need more sleep. The human variance is 6-10 hours, and you don't get to pick whether you need 6 or 10. Some one who needs only 6 has FOUR more hours in every day than someone who needs six. That's a fuck tonne more of life to fill each day.
Some people have health conditions that take up an hour or hours of their day to manage.
Some people have longer commutes.
Some people are just higher energy people than others. If you are higher energy, you get more done.
Some people have found an activity they love and are prepared to prioritise it. Some people have not found an activity they love - forcing yourself to do an activity you don't like requires more discipline than most of us have.
Some people live in attractive areas they feel safe to run in. Some people don't feel safe running where they live.
Some people live in areas with lots of activities and groups to choose from to be active in. Some people live in areas where they have little or nothing to choose from.
Some people have the spare money to spend on classes or exercise clothes and trainers or equipment, some people don't.
Some people have been brought up in active lives and enjoy moving and being active. Some have been brought up in quite sedentary lives and do not really enjoy being active.
I could go on. The fact is we are all different and we all have different barriers and opportunities. Other people are not you, living your life.
If you want to be active then you do need to find what are the opportunities in your life and stick to them. But we are not all starting in the same place and its is much easier for some then others.