<p>Can someone please describe the average course layout for each major? Also can someone describe an average day working as each?</p>
<p>Is it easy to drop one and jump to the other? Which is the hardest out of the bunch? After a BS which can get me a good job?</p>
<p>Good as in Benefits, Vacation, Pay, willing to let me continue my education, so I can get that MS.</p>
<p>I suggest you find some schools that offer all three degrees and research their programs to see exactly what the course layout for each of them is. Bio-engineering or BME programs seem to be a perpetual state of flux right now as the field is somewhat new, so each program may vary depending on the resources of that particular university. Mech and aero are quite similar and in some sense aerospace is really just a sub-field of mechanical, some schools even call their programs MAE (mechanical and aerospace engineering). And again, depending on what the university program offers for bio engineering, components of it could be simply a sub-field of mechanical as well, though it could also be a sub-field of chemical, materials, electrical, etc. </p>
<p>It’s probably not do difficult to switch between the majors so long as you don’t do it too late, like in your junior year or something. The hardest one is the one you enjoy the least and any of them can get you a good job in the end.</p>