They could have lost more weight by doing 15 minutes of strength training three times a week (a total of 45 minutes per week), and they don’t even know that. People like you are misleading others by saying that walking leads to weight loss. If you love walking and listening to audiobooks, keep it to yourself. Don’t mislead people into thinking that’s the way to lose weight. Because there are optimal methods.They do lose weight by walking ban , don’t be a retard