it's not just that, it's the entire mentality towards property and property ownership in this country, darcy, as i've tried to state in nearly every one of my posts. it's vastly different from most of the US, as are their tenancy laws, which again, vary by state to account for the enormous geographical area.
even property transfer of ownership laws vary. for example, some states have a disclosure law which states that if an owner is aware of a murder, suicide or other unnatural death that occurred on the property, it must disclosed before the sale is complete or the purchase can be nullified and the seller open to suit.
and it's not federal law specifically geared towards properties and property rental, but that encompasses discrimination in many forms - for example, it's illegal to ask a lot of question of a job applicant that are relatively commonplace here.
and again, a significant proportion of rental housing there is in owned by a commercial company. therefore, the property is viewed in a different light, taxed differently, insured differently, managed differently, etc.