So, after being in a company for about 3 years on whatever type, any other ratings you may have are lost entirely and you can never fly one of those aircraft again? Is that really correct? (unless you or the company hiring you pay for the full hugely expensive type rating course...unlikely)
If this is the case, that will have a significant effect on the movement of pilots in the industry, since you will effectively only be able to apply for jobs on your current type, not on any previous type..