It’s good to ask for feedback
It’s reasonable to expect to be advised of the outcome of your interview, whether or not you are successful. Hundreds of people might apply for a job, but only a few will be interviewed, so there’s really no excuse for an employer or recruiter not letting you know the outcome.
If someone who interviews you doesn’t tell you when to expect to hear the outcome, it’s okay for you to ask this question before you leave.
It can be dispiriting if you don’t hear back for a long time. It may mean you’ve been unsuccessful, but it’s possible there are other reasons for the delay. For example, it may take time to contact referees and to get approval to make an offer.
If you feel you did a good interview but were unsuccessful, remember that you may have been one of several applicants who were well suited to the position.
After interviews, some employers keep a register of applicants who were suitable but unsuccessful. If you’re still interested in working for the organisation, make sure your contact knows you would like to be considered for future positions.