I wouldn't cast 'I don't want to do this because I need to be careful' as laziness, it's just being smart/pragmatic. Take that statement in the context of home

I wouldn't cast 'I don't want to do this because I need to be careful' as laziness, it's just being smart/pragmatic. Take that statement in the context of home grown cryptography instead of pointes and it'll make sense. People might have different thresholds for the need to be careful. Also, with regards to 'I don't need/want to understand what's going on as long as it works' ...isn't not needing to understand the implementation the entire point of creating abstractions?