Riddle That TooK Me Ages To Get?

A man lives on the 33rd floor of an apartment building. Every day he gets up for worK and takes the elevator down to the ground floor. After worK he comes home taKes the lift to the seventh floor, gets out and takes the stairs the rest of the way up. The lift doesn't get stucK and he doesn't want to lose weight by walKing. So why doesn't he tae the lift the whole way up?
 
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