I love that I don't have to worry about children.
My friends who are parents are always worried about something - it never ends! When they had babies it was endless; agonising over sleeping, weening, A&E visits because they had a fever, then preschool, then school, worries about schoolwork, fitting in, bullies, friends etc.
Quite a few have autism or ADHD and they worry if they'll ever be independent. It was this that made me decide 100% I wasn't willing to have kids, as I didn't want a disabled kid to look after and worry about the rest of my life. My cousin is disabled and basically her mum's life ended the day she had her. She's a shadow of herself and is on depression medication.
They have all these worries about climate change (ironic) and this whole trans thing being shoved in kids faces, honestly every single mum friend I have has aged so quickly too.
I love my clean, tidy house and peace and quiet, my lifestyle suits me perfectly with hobbies, friends, as much sleep as I need.
I run marathons, go on lovely holidays, have a wonderful husband, have time for anything I want to do spontaneously.
Being a parent seems relentless, exhausting and I'm glad I'm not one!