Tenants and owners are not responsible for damages caused by “reasonable/fair wear and tear”. Reasonable wear and tear includes things that happen to the property unintentionally and out of the tenant’s control, during the normal use of the property, and that do not create significant effect. The extent, noticeability and effect of the damage should be used to consider whether the wear and tear is ‘reasonable’.
For example: minor marks and scratches, wearing down of carpet pile, fading of parts of the house due to sunlight.
Significant carpet stains, marks, burns, scratches and damage are not considered to be reasonable wear and tear, even if accidental.