rest (squarely) on (someone's) shoulders
To be or become the sole responsibility of someone. I never intended for the company's well-being to rest on your shoulders, but you're the only one who can take over for me while I'm ill. With my father gone, putting food on the table for the family rests now squarely on my shoulders.
fall (squarely) on (someone's) shoulders
To be or become the sole responsibility of someone. I never intended for the company's well-being to fall on your shoulders, but you're the only one who can take over for me while I'm ill. With my father gone, putting food on the table for the family now falls squarely on my shoulders.