I think this can be a complex question.
My DC are the best thing I have ever done. The one thing I am truly proud of (I need to hasten to add I don't actually think I'm an amazing mother but I do think they know without a shadow of a doubt I love them more than anything in the world and would do anything for them...I also ensure I balance having my own identity but if i will point to anything in my life that is good it is my DC).
I wouldn't change any of that for anything at all.
Having said that if you told 29 year old me exactly how hard and relentless , stressful and terrifying it would be. How you realise in the first few days what a bloody gigantic permanent responsibility it was ...well if I am honest I would have run a mile.
Because it is almost impossible to define the indescribable beauty of the love you have for them..The incredible dichotomy it is to have two little people that you would do anything for and who at the same time can push every single button, run you into the ground, exhaust and frustrate you to the point where you don't think you can take another step and then with a single gurgle or smile or even just a look from them you would be back up and the sun has come out and you are ready to fight the world to protect them. The juxtaposition of the hardest , most gruelling job that brings the most incandescent joy , all in the same ten seconds sometimes is hard to truly translate until you have felt it.
I don't believe you can truly understand it without having done that. So no , if you described motherhood (I emphasise that I do not believe this is solely biological motherhood , I very much included adoption etc) to me in real terms before I had my DC then I would have legged it.
Thank god nobody did because I wouldn't give this up for anything (unless ds2 tries to literally steal the cheese I am eating out of my hand...again...then well considerations may be had
)