I'm not sure I understand that.
If we didn't need it, it probably wouldn't be there? Does that apply to all government entities then?
And it is the "strictly for profit" mentality that has been given the responsibility of running the Dept. Of Education. The federal government shouldn't be running education at all. Let it do a better job of running what it's supposed to run.
First off, how has the government profited from running a free public education system? I would agree that with the appointment of deVos it will now turn into a "for profit" system driving out the poor who are attending underfunded systems now. Another little tidbit you ignore is that the Fed only funds 8% of the educational process. Hardly establishing a system of control. Even the text books are not controlled by the Fed, nor is the selection of teachers. If the Fed has any control it is because the people themselves allow it. When I was growing up we had the Parent/Teacher Association (PTA) which actually decided much of the curriculum. Now parents have shoved their children off on the schools making the school a "baby sitter" while the parent seeks a career.
As to the need for the DOE, like any government agency it has become super bloated with bureaucrats that seem to feel they know better then anyone else. And the agenda of the DOE has radically changed. Prior to 1979 the education department was part of the Department of Health, Education, and Welfare. In 1979 the Department of Education was created separating it from the DHS. The purpose of this new department was 5 fold:
"Strengthen the federal commitment to assuring access to equal educational opportunity for every individual;
Supplement and complement the efforts of states, the local school systems and other instrumentalities of the states, the private sector, public and private nonprofit educational research institutions, community-based organizations, parents, and students to improve the quality of education;
Encourage the increased involvement of the public, parents, and students in federal education programs;
Promote improvements in the quality and usefulness of education through federally supported research, evaluation, and sharing of information;
Increase the accountability of federal education programs to the President, the Congress, and the public."
Of course we know how that went.
All of this could be fixed if parents were to get involved as many Black parents are in the poor schools. They won't, the system will get worse as technology grows and children fall further behind, and the right wing will use it as an excuse to eliminate education for more poor children, and the disadvantaged. Of course, they will also whine about the increased need for more welfare.