I think I'm not going to talk to my parents for 20 years.
Is there a reason you don't want to talk to them?
No, I just want to do it.
It's within your right to decide to not interact with family. Just because someone is family doesn't mean that they have a right to your time if you don't want to give it to them.
I'm going to do it.
If that is your choice, then it is fine. As long as you feel it is the right thing to do.