No no no.
Our four under 4 year old grandchildren went home about 6, the first arrived at 7.45 am. I've had a glass of restorative wine and I'm now drinking camomile tea and looking forward to an early night.
I love those 4 little ones more than I can put into words. I enjoy their company, love being with them listening to them chatter. Its wonderful to be surrounded by little ones who are learning about the world, who have a sense of wonderment, belief in all things magical. I even loved revisiting belief systems when the 3 and 4 year olds asked me on several different occasions "where did X go grannie". X was one of our dogs who sadly had to be put to sleep recently, much too young and very poorly. The children noticed he wasn't here and are in that mode where one will often ask "why did X die". "where has X gone". "when X wakes up again, will he come home". It so life affirming to go through this kind of Big Stuff again.
Getting up at 5.45 am every day, never being able to take your eyes off them and so on - no thanks, I've done that. I can do it one full day a week, fairly regular sleep overs of various combinations but, I've no desire to be a parent again.