Just my .02 cents with only having made it through day 10 of 1 game in a19.
While Stamina is managable, the Food/Drink/Time cost versus the rewards when running or mining are nuts so far.
I was walking everywhere to save on food, boring. Made a Bike morning of day 4. Forgot how slow they are when not sprinting, and the small storage. Made a Minibike day 6. (City the starter quest sent me to is in snow, so lots of traveling compared to most of my starts)
Day 10, lvl 12, relocating to a different city, taking over collapsed building, clearing 200hp rubble blocks so zeds can't get to 2nd floor. 1 point in Miner69er/Sexrex, T5 Stone Axe with purchased gravedigger mod does a whopping 25 damage. With Tea, Grilled Meat (have used all eggs) and a couple Bacon & Eggs I can swing that stone axe basically non-stop, but it's so boring to peck away 8 times to break one of the weakest blocks in the game.
I briefly, very briefly, considered knocking out the double-wide concrete stairs. Maths saved me. Concrete has 2500hps, so it would take 100 pecks, per block, and would need to knock out 6. Mama didn't raise no fools.
What I guess I'm missing is what is gained by these changes?
Say that axe did 75 damage instead. Rather than spending about 11 in-game hours clearing rubble I would have spent less than 4. Or could have spent the same 11 hours but had 3x the Stone. So 1 stack of stone instead of ~2000. So what. Still need a Forge, smelting/crafting time, then need a Mixer to finally have some concrete mix. What's the issue with that?
A17 and on have generally taught players to take over a strong POI rather than build a base out of the gate. Not saying it's impossible, but other than cheese bases a player built horde night base for day 7/14 is pretty much a boring 5x5x4 block with a wooden bar overhang.
So I took over a Lathams Hardware, which has concrete walls for initial base, first horde barely scratched the paint. 2nd base has concrete supports and brick walls. I'm not worried about day 14 or 21 hordes, in either of these.
Point being, even if mining was like a18.4, what was the harm with it? Players got too many materials? Maybe too much iron/nit/coal? But too much stone/clay/sand... what now? How is that an issue? Because players were building bases instead of remodelling?
Last bit. How would a brand new player evolve? Sure they can shovel cement/cobblestone from pois for some materials, but not near enough to build anything interesting, unless there are some new in a19, -T1-2- pois that have just boat loads of mats that I've yet to see. Why would they ever even begin to build a new structure? There was already the time sink of mining, and the point cost, but at least you'd get enough materials to then be able to build something from scratch.
Now pretty much every game mechanic is screaming at a new player not to do it. High Food/Drink cost. High Time cost. Low rewards. No Equip/Un-Equip button for Armor. Many hours in-game play time before Iron tools might show in loot, plus they'll take a big portion of points to be able to use them effciently. Meanwhile there are all the shinys that a new player will be dreaming of, like Pack Mule, weapon perks, armor perks, etc.
Just seems to me that the A19 'generation' of players will look at old timers trying to build even smallish bases from scratch and just shake their heads, mumble, "sad to see those old folks wasting all their time trying to do that..." "must be senile I guess"
Edit: just read Lisels post on stamina while mining in heavy armor, then read the bug report where response was that mining in armor doesn't increase stamina cost. I was going off of several MM posts where he was telling players to not wear their armor when mining.
https://community.7daystodie.com/bug-test-1/not-a-bug/a19-b141-armor-doesnt-reduce-stamina-regeneration-while-digging-r713/