The debate regarding the relationship between paedeophilia and celibacy has been ongoing for many, many years due to the high incidence of child abuse in the Catholic church and the obvious correlation. Yes, paedophiles are known to seek employment where they have close access to children, however priests have less contact with children, comparatively, than a lot of other professions, yet the rate of child abuse is still incredibly high. It certainly shouldn't be disregarded in the celibacy debate.
In answer to the actual OP - I believe celibacy, for most, goes against human nature. It's not natural to suppress sexual urges.