As a homeowner, you have a responsibility to exercise reasonable care with respect to the maintenance and upkeep of your property. This includes protecting anyone who comes onto your property at your invitation. As long as you take reasonable care to protect and inform, you will probably not be sued successfully should anything happen.
Children who use your property may not have an appreciation of the possible dangers and if you know they are using your property, you must take extra care to protect them. Trespassers have different rules regarding their rights depending on where you live and other circumstances. If you think you need legal counsel, please consult a personal injury attorney by clicking the link below.