The average citizen has a different perspective on time than a human usually does. On the one hand, the short lifespan encourages revelry and enjoyment of life, since there is only so much of it. There are a lot of loud parties, but also a lot of responsible parents. The pubs all permit smoking, and serve drinks in pint and quart glasses. Visiting humans can have trouble getting into some places, since they're not regarded as people in the Troll Kingdom.
Resident humans are effectively serfs.
They have a limited range in which they are able to travel, both within the Kingdom and within the towns of the Kingdom, and they are the responsibility of their local feudal lord. Accepting such beings as citizens is another means of procuring outside investment, since there are few countries that will permit them to own property. The official government line is that such exotic beings deserve regard as individuals, just as Orks and Trolls must fight for in other countries. A Glossary of European Noble Titles can come in handy if someone's buying one.