We have a company close by here that send all their new tilers to college and the owner even attends special days at the college. So there are some companies that embrace the training programs and some that, as LM ceramics say believe its better to get out on the site.
Training is the way to go, of that i am sure. it will accelerate the early days of learning how to tile and the theory behind tiling. Although once on site you will find it will be different to the classroom. All knowledge is good.
I suggest that you do as you plan and set the wheels in motion. If you have no luck, get yourself on a good course and then try again. This will show any prospective employer that you are serious.
It is my belief that Training should be followed with a period of work experience under guidance from established tilers or companies. After that time it would be up to you if you decided to go alone or stay with the company. Some people prefer the self employed route and others the comfort of being employed.
What ever happens, good luck to you.
