Don't mean to offend but this is a genuine question.
I'm a single mum of a single child, and plenty of my friends are also single mums of single children.
I obviously put my son first but I wouldn't allow DS to decide whether we go out with this friend or not, I wouldn't stop meeting with good friends because DS may get bored with their children, I don't cancel holidays at the last minute because my son decided he was not in the mood, and I don't cancel previously arranged outings because DS decided he would rather stay in having a pijamas day...
I work FT so it is difficult to do things during the week but we normally split the weekend in 3 parts: one for DS to meet with friends, one for me, and another where there is something interesting for the two of us.
So, is this normal to let the children rule or is it me needing different friends?