I feel sad when reading these posts, it seems we see more and more. As TJ says, three months is not the way you learn a trade, ( and tiling is a trade). Three years is the current criteria, used to be five/ six years. We as a skilled workforce should make a stand, and say with one voice "we have had enough"!!!.
Courses provide a basic introduction to to the art of tiling, nothing more, as any trade, tiling takes many years to master, and to become a true master craftsman takes a lifetime, we can't compete with the diluted skills of these wannabe tilers, sorry if my personal views upset anyone but, I am passionate about my trade.
I hope I have not blown my TF membership, I may have voiced my opinion once to often.