The presence of lead paint does not mean that every homeowner should engage in a full-scale lead abatement project. Much like asbestos, if lead paint is maintained in good repair it poses minimal risk. But when paint fails, precautions should be taken to minimize the dust and particles released.
Old painted surfaces that are peeling, chipping, flaking or otherwise failing will provide a constant source of small particles of paint that can be ingested or inhaled. Moving surfaces that are painted can generate lead dust by friction. The dust is difficult to remove and may accumulate over a period of years. The friction of opening and closing a window sash or a sticking door can generate lead dust.
"The advantages of having a property inspected for lead-based paint are numerous"
"Having a property tested for lead-based paint has numerous advantages, even if lead-based paint is found"