I'd support anyone's decision to have or to not have children; either may be the right and best choice for any given individual. But societally someone needs to sprog otherwise who will staff the hospitals, empty the bins, wipe the bums of all the elderly care home residents and carry out the economic activity that generates the resources to allow a society to function? So unless we master cloning or transcending into a machine state or something, kids are a pretty unavoidable part of life.I absolutely have no regrets of choosing not to have children. I have worked in retail and just life long enough to know that its just miserable. It's not the life I want - My uterus....my rules....I would rather it host sweet rave parties rather than a baby
IME parenting, like much of life, is sometimes a touch tricky and sometimes rather splendid but I really wouldn't describe it as universally 'just miserable' - which doesn't mean I think you should try it or anything, just be a bit aware that isn't how it is for everyone. By all means be the boss of your own reproductive organs, but it doesn't seem unreasonable to afford the same to others even if they make different life choices to you.
FWIW my kids have always been taught that you wait your turn like everyone else. One is British, after all. Funnily enough the rare parents I've encountered who expect to queue jump because they have chiddlers tend to be the ones who also think themselves additionally entitled when there are no chiddlers in the equation - the kids are an excuse for manifesting an underlying behaviour, not the cause of a new one. There are occasions and situations when I think it is basic human decency to let kids skip a queue however - if I'm waiting in the loo queue in the ladies and someone comes in with a leg-crossing wee-dancing 3 year old I will happily cede 'my' place to the small human who is just about mastering bladder control because I'm a grown up - and in some circumstances prioritising meeting the needs of the very young first means that everyone's life is just a bit more pleasant.