My son is very musical and chose (with a lot of urging from me, bc I love it) cello in his 4th/5th grade classes and then euphonium for 6th grade band. He is very small and somewhat uncoordinated--and we had huge issues (pun intended) with his being able to bring home these bulky instruments. We started thinking it would have been a better choice to play the piccolo...but then he'd probably lose it. He loves the deep sounds, and so do I, easier on the ear when they are beginners. But the size of those instruments has been a challenge, logistically.