Kiernan Shipka has to "set boundaries" for her dating ... but I’ve spent so much of my life in the public eye in one way or another, I’ve figured out that I need to set a boundary for myself ...

Kiernan Shipka was only 7 years old when she debuted ... But once I started going to fittings and being exposed to the costumes, it was eye-opening from that point forward" (per Yahoo!).