Mate we have been in lockdown for a month, covid exposure sites are everywhere in my city, and we are in lockdown for another month yet. This is better than venturing out - and it is less carbon emissions than a car.
We haven't all survived, somewhere in the neighborhood of 5 million people have been killed by COVID. Obviously not all of them died from contracting COVID at a restaurant or coffee shop, but I suspect the number of deaths from trips to get coffee is significantly higher than zero (and that's before you take into account other factors like traffic accidents)
We have had several extended lockdowns of more than a month in the UK. I just ordered ground coffee beans and made it at home. Yeah, not as nice as real espresso, but it's not the end of the world.
We have a big espresso culture in Australia, so a lot of people have espresso machines at home anyway. Compared to coffee from the shops every day it's pretty cheap to buy and run a consumer espresso machine at home.
That said, part of the fun of coffee is the cafe experience; covid willing, I still go out to cafes as well. Best not to optimize all of the fun out of life.