Jobs in retail can be boring, especially if you do the same thing eight hours a day, week after week. That is one of the major reasons behind high job-hopping rates in this field of business. Not many people can handle job in retail for a long time.
On the other hand, recruitment is a costly procedure. Each employee needs to be interviewed, trained, etc. Therefor, recruiters try to see if you have some inner motivation to do the job for a long time, even if it is a routine one.
You should focus on your preference to routine jobs in your answer. Not everyone likes challenges, some of us simply love routine, and you should try to show that in your interview answer. Alternatively you can say that you do not consider this job a routine one. But if you do that, you should be able to elaborate on it, saying why you do not consider it routine.
I do not like creative, or challenging jobs. Routine is what I am looking for. I like to know my job, to know what to do every day. I do not like surprises in work. I can learn to do my duties well, and enjoy doing them day after day, for a long time.
Good collective on the workplace matters the most. After all, nearly every job is repetitive, at least to certain point. But if we manage to build good relationships with the colleagues, I will feel a part of a team and won’t feel an urge to change my job. To be a part of a hard-working team motivates me a lot.
From my point of view, this job is not repetitive. There are new customers every day. There are new situations, new faces, new problems and challenges you face. It actually depends on the point of view. For me, it is not routine at all.