Demihumans in High-Level Play (HLC)

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Demihuman characters are usually forced to retire or assume secondary roles in the campaign once human player characters begin to reach high levels and the demihuman characters reach their advancement limits. That is exactly what is supposed to happen. Many DMs are tempted to ignore demihuman advancement limits, especially when players are unwilling to retire their high-level demihuman characters.
Do not ignore demihuman advancement limits; they are the price players must pay for gaining demihuman advantages at lower levels. Ignoring the advancement limits unbalances play by placing high-level power in the hands of characters who already have extra abilities, and it is grossly unfair to players who have chosen human characters and have labored long and hard to get to the point where their choices begin to pay dividends in the form of unlimited advancement.