I don't want children either. I'm well aware that theres less impact behind that statement coming form a 21 year old than form a 30 year old. But i can relate to mahny of your points. I'm fine with beeing responsible for myself, and help out my friends be it through advice or econimocally (1 guy has owed be about 1500$ for several years now) but the prospects of having someone else (a child) be totally reliable on you scares teh shit out of me, and i don't liek the thougth of it.
I've thought a lot about it, cause my girlfriend wants children, she's only 20 years old, so i guess i have a few years before it really becomes a problem even though she wants to have them when she's still young. She knows that i don't want any, and this could very well end up beeing the bane of our relationship some day.
I also don't liek the thought of my life beeing changed in the way kids do. I won't have a lot of time to do what i like to do, my focus will move form me, me and my girlfriend, and me and my friends to primarily the child. I odn't want my relationship to become less about me and my girlfriend, and more about a child.
Seeing as i'm studying 3d animation ATM, when i'm done i'll be in a bussiness where it's pretty normal to move aroudn teh world from job to job. I wouldn't like beeing a father who had to leave my kid for half years or more at a time, to get the jobs i dream about having.
Also cat's are fucking awesome, i'd definitely want a cat if it wasn't for the prospect of moving aorund the world for jobs, and the fact that i live in a small appartment not fit for a cat. I miss my old cat who i couldn't bring along when i moved our form my parents house. Luckily i don't live very far from my parents, so i can easily visit them, get good food and see my cat.