they should only retire if they want to. mirai has so much potential, and she is still quite young. i don't enjoy rachael's skating, but she really should be commended for being able to balance a respectable skating career with stanford.
basically, i'm a michelle fan, and considering that she had to endure taunts calling her to retire for the entire second half of her career, i can only be sympathetic towards other skaters who face similar criticism, whether it's rachael or fumie suguri.
basically, as long as they put the work in to be able to qualify at nationals...they have every right. and btw? i've always DETESTED the idea that older skaters should move on after a certain point to make room for the new girls. what a ridiculous notion! if they're good enough, they should step up to the plate!