Visitations for Grandparents

I know their are alot of grandparents that do not get to see their grandchildren! Because their son's or daughters are mad at them or their boyfriend parents won't let you see the grandchildren either. All I would like to do is spend time with my grandson and get denied. I do not have a record, never been in jail,or do drugs.What is with the goverment and DHS ! I hope Grandparents will climb aboard to fight for grandparents to spend time with our grandchildren. Thanks