Not just physics students. Anyone who has to deal with geometry should learn it. Anyone who would otherwise study trigonometry, linear algebra, vector calculus, complex analysis, projective geometry, &c. should learn it first. It’s a much better set of mathematical tools for understanding spatial relationships and transformations than the alternatives for many if not most purposes.

For anyone dealing with computer vision, graphics, or modeling type fields, I recommend the more recent book “Geometric Algebra for Computer Science”. http://www.geometricalgebra.net/