no problem at all but
the regulated profession are very important because of its effect on people's life like doctors ,engineers , pharmacists,,etc
"A note on regulated occupations: Occupations that are regulated either by the provinces or by professional associations are generally regulated because they have a responsibility either for public health or to protect consumers/clients. For this reason, educational and any additional requirements are clearly defined and licensure cannot be obtained unless requirements are clearly met"
""Many occupations for which immigrants have trained are regulated occupations. These include engineering, medicine, nursing and teaching. For immigrants who wish to work in a regulated occupation, practicing that occupation outside Canada is not considered sufficient and they must prove that their foreign credentials meet Canadian standards."" from CIC website
http://www.statcan.gc.ca/pub/75-001-x/2010102/article/11121-eng.htm