I don't mind doing it but I'm worried this is my dad's way of roping me into helping out at the store. I suppose from his point of view I look like I've given up on life.

I've seen something kinda similar happen to students in my research group. When new students come in, they typically get handed a small project that they can contribute to that gets them some experience doing research, their name on a publication, and a bit better idea of what the field is about.

If they don't make much progress on coming up with their own project, their advisor pushes them to take the next step on that initial project, and the next, and so on. Even if it's not what the student really wants to be doing, that kind of project makes sure that they don't end up spending a decade getting a PhD.

I guess my point is that if your dad is leading you into helping out at the store, you should feel happy that your dad cares about you, but if that's not ultimately what you want to do, you should be taking steps to figure out what it is you do want to do.