the interview is not meant to be serious. her saying joining-AVEX is tongue-in-cheek. i'd say its quite practical advice too
In answering she can ride a bicycle, she also say/imply (which i found hard translating literally into English) that it's not practical for her a celebrity to ride bicycle in public as people would chase her. if people ignore her, she will ride.
i think her foot fetish is healthy sort of thing, like she pays attention to how gorgeous feet can look. its nothing sexual.