Old cars can not be insured?

When buying a new car, you certainly never want to directly insured. But what if precisely what we have is not a new car? or even an old car?
Well, for that one, it turns out the direct car insurance company admitted it difficult to decide, if they dare, or not to cover claim of loss when the old car was insured.

Because it is an old car, usually more susceptible to risks, so it will be difficult to measure.
Can be described, because of age, of course, make a car becomes more easily damaged. Thus, the risk would covered later become increasingly high, so that may not be comparable with the premium contribution.

Moreover, another difficulty is that usually people who want to insure his old car, obviously based on something, like that antique, or his personal collection, so it has an emotional value that is difficult to measure.
Therefore, for older cars, the direct car insurance limit in terms of age, a maximum of 9 years, more than that, usually they do not dare.