An extra complication is that, as a casual OS X user, it seems to me like OS X terminal emulators and tools are more likely to munge with the path

This might be a function of the casualness rather than the tools. Here's a thing to check out on OS X:

    man path_helper 

I didn't know about this for ages and it makes your path life much saner - at least you'll have some idea where seemingly magical paths come from. Personally, I use it for everything and don't let other profile scripts eff with the global path at all.

It's a level-headed article. Parenting, like almost nothing else, turns normal, intelligent, educated people into nutters. A rational, evidence-based conversation about screen time, breastfeeding, pregnancy, birth, education, and diet is increasingly impossible to have, especially with millennial parents.

I just got my four year old an iPhone (with a data plan, because she realized she didn't have wifi in the car). It's great! She can text me emojis and Digital Touch messages, and Facetime me at work whenever she wants. It's fine: https://www.theguardian.com/science/head-quarters/2017/jan/0....