While conventional wisdom states that you should have outlets be
weak, not having the outlets as
weak does not necessarily pose a problem. In fact, Apple has flip flopped between having outlets as week or as strong at different times.
In fact, some versions of Xcode, if I recall correctly, generated code that had the outlet be strong. So, while I agree that having outlets be
weak is what most people seem to go with, it doesn’t mean that you’ll have crashes just because you defined an outlet as strong (or not weak).