I'm not going to go out to dinner with my parents
Why don't you want to go to dinner with them?
Because it's going to be a restaurant I've never been before and I don't like it.
That's understandable, but it's important to follow through on a dinner if you promised you'd be there. You may end up regretting not showing up.
Would it make a difference if I don't see them often in my everyday life anyways?
Not all families have to have close relationships. But, if you made a promise to be at dinner, you should follow through unless you gave plenty of time for them to seek other plans.