Urgh what an unpleasant original post! This reminds me of people who scoff when you say you and your child are friends, cos apparently, it's not possible to be friends with your child; you can only be a disciplinarian and order them about.
Me having coffee once a week with my (young adult) daughter (who lives half hour drive from me,) and going shopping with her twice a month or so, and going away for the weekend to Eurodisney, and going to a Green day concert with her, is a bit weird apparently, and 'odd,' and 'not quite normal,' according to a couple of bitter jealous bitches women I know. Unsurprisingly, one is child free and one has 2 (adult) sons. 
I used to love my daughter being off school, and as I worked part time, I had a whale of a time with her, going on day trips to the beach, going for picnics, going to the cinema, going to concerts and the theatre etc. And DH used to enjoy her being off too, and used to love the daddy/daughter days they shared. He would take her fishing, and to play golf, and suchlike.
Why can people not just live and let live? The OP sounds a bit spiteful. What's your problem? Are you jealous? 