Training could support older workers in working longer. However, their training participation is low and unequally divided, possibly reinforcing inequalities among older employees. We study managers to understand this inequality as they are key actors in deciding who receives training. We study which workers are selected, based on their employability, age and sex, depending on the country context. We use a vignette experiment among 482 managers across nine European countries. Managers gave ‘trainability scores’ to hypothetical employees indicating how likely these employees are to be selected for training. We analyse what drives their (inclined) decisions.