Why better accommodation does not make sailors soft

Do other navies provide better food and accommodation than the US Navy?

Often yes in recent designs; better living conditions improve service life, and the next US frigates should regain some of that lost ground.

Base and shipboard accommodation compete for funding because improving one area makes neglect elsewhere more visible. US ships once set a high standard, but much of the fleet stopped progressing during the Cold War while European and Japanese designs improved. Royal Marines aboard Queen Elizabeth-class carriers noticed both the bar and the more comfortable quarters. The future Constellation-class frigates are expected to reintroduce roomier European-influenced arrangements, reflecting the lesson that habitability supports rather than weakens a crew.