As American students wrestle with algebra, geometry and calculus — often losing that contest — the requirement of higher mathematics comes into question.
Source: Is Algebra Necessary? – The New York Times
The main issue I’d take with targeting mid-level math in general is that each piece provides an important insight into how reality, in all her cold, unforgiving stubbornness, operates. Theorem proofs show that there exist things which can be conclusively proven in totality without room for opinion or shades of grey, and that the bar for such a proof is extremely high. Logic and discrete mathematics show how every argument can be boiled down to math and, used correctly, leads to better discussion by separating assumptions (shared and unilateral) from facts from opinions and moral goals, and can facilitate compromise.