Yeah but it's better for your mental sanity. It's not just a habit, the closure reduces the mental load and helps to keep track of structure in the messy world of html documents. So it is actually more efficient
It depends completely on how nested your HTML tags are.
I hand write my HTML sometimes, and in those cases it’s often very basic documents consisting of maybe an outer container div, a header and a nav with a ul of li for the navigation items and then an inner container div and maybe an article element, and then the contents are mostly p and figure elements and various level headings.
In this case, there is no mental overhead of omitting closing li and closing p at the end of the line, and I omit them because I am allowed to and it’s still readable and fine.
It depends completely on how nested your HTML tags are.
I hand write my HTML sometimes, and in those cases it’s often very basic documents consisting of maybe an outer container div, a header and a nav with a ul of li for the navigation items and then an inner container div and maybe an article element, and then the contents are mostly p and figure elements and various level headings.
In this case, there is no mental overhead of omitting closing li and closing p at the end of the line, and I omit them because I am allowed to and it’s still readable and fine.