Why would I care about you specifically, and not the dozens of other people working at the coffee shop? Does the world revolve around you?

If they are specificly targeting you, then they probably dont need to use the coffee shop. The coffee shop is for low skill attackers targeting people at random.

If someone has it in for you and hired a high skill attacker, its not a stretch to imagine they compromised your home network.

Compromising a specific person is difficult. Compromising any old person is trivial

> good luck predicting where I’m going to have my next cuppa.

Why are you assuming there isn’t someone else trying to hack you at the next cafe? Actual damage can happen one person at a time, and can occasionally lead to larger scale compromises. Randomizing your location isn’t going to reduce your risk. Now that everyone who’s paying attention knows they can MITM your Mac, you shouldn’t trust any network.