Reading a book a week isn't difficult. If you read at a hobbyist reader's comfortable pace then you can finish a medium novel in five to seven hours. Hobbyist readers with full-time jobs who read on the side can read from one to six hours a day. Think of the average person's daily phone screentime.
Rather than making absolute statements, let's say that's true if you have a lot of responsibilities and other hobbies.
Some friends of mine say they had huge amounts of time to read and do stuff before they had kids, but took it for granted and managed to complain about having no time.
Lots of people spend huge amounts of their time on their phones or computers passively browsing, or watching Netflix or whatever. Reducing that time and reading instead is very achievable.
This is not true for everyone, others really do still have responsibilities and hobbies that take up too much time to be able to read a book a week. Others read slowly and cannot improve. No advice about free time is one size fits all.
