Mature age entry is welcomed in many countries, and 30 is definately to old. The main issues are the volume of work and financial support during the study. in Australia this is a 4 year minimum commitment. The govt. can provide assistance and you will need it. About the only thing to mention is that the course is hard!! It would b beneficial to consider taking another relevant course to ease you into the concept of studying again after a long break. Starting a B.A in Science would be a great start which would assist you should you chose to transfer to physio in your country, which by the way is where? regards richard