We have a 1930s house. Mostly in good condition but some paint has flaked off the woodwork around the stairs (on the skirting board and the corner of the banister). The under layers that have been exposed test post for lead. Is this dangerous for babies and toddlers? Do we need to take any precautions? We would like to redecorate at some point but can’t afford it at the moment and will probably get a professional in when we do.