When Should A Single Mom Bring A Man Around Her Children?

When a woman is raising children without their father, she may decide to have a personal romantic life, which means bringing men around her children who are not their father. It can be awkward and upsetting for children, particularly if their mother is "dating" several men. Should a single mom have a live in boyfriend? How will that affect her relationship with her children? Should the live in boyfriend have authority over het children? If she has daughters, how concerned should she be regarding potential sexual abuse by a Livesin boyfriend