I'm breaking the script of having kids

It's common in my family to marry have children in your late teens or early twenties. Almost all my cousins, nieces, nephews are having multiple children. There seems to be a new baby shower popping up in every season. My grandma on my mom's side is practically a great great great grandmother. I'm her first generation grandchild but she has lived to see at least three generations of grandkids and more are coming. But not from me.

I'm 27 so while I could decide to get married and have kids I won't. For many reasons. Too much responsibility that I am not capable of. I don't want to be a "mother" I am a transman. I want to travel the world and I think a kid could get in the way. I don't want to bring someone to have to grow up in this world. I simply refuse to follow the script. Who's gonna take care of me? I don't know. What about my bloodline? My brother said he's having kids so he can keep it going. Don't you feel guilty? Yes but I'll feel more guilty as a parent because I'm going to suck majorly as a parent. I can't take care of myself and you expect me to provide for a whole ass person?

That is the singular most major responsibility and I know I'm not mentally mature or prepared to take it on. No thank you. Also I don't care if I can afford to have a kid I won't have one. Even if I'm rich I won't. I don't care anymore. My parents don't tell me when I'm having kids either. They have low expectations of me. I dropped out of college and still live with them. We all know that I'm basically a kid in a grown up body. So why should a kid be raising another kid?