Coinsurance encourages policyholders to insure property

Insuring to market value may not reflect the actual replacement cost or the value needed to fully cover the property. Market value can fluctuate based on various economic factors, and relying on it could lead to insufficient coverage in the event of a loss, which contradicts the purpose of coinsurance.

Insuring below value directly undermines the principle of coinsurance. If a policyholder chooses to insure their property for less than its actual value, they risk facing significant financial loss if a claim arises, as they would be underinsured and may only receive a partial payout, leading to a financial burden in recovery.

While insuring above value might seem beneficial, it can lead to higher premiums without any practical advantage, as insurers typically only pay out up to the actual value of the loss. This situation can create unnecessary expenses for the policyholder while not providing any additional security or protection in the event of a claim.