Pickaxe tool is:
- Not very interesting.
- Basically mandatory.
- Easy to craft.
- Occasionally forgotten by new players, greatly slowing down their game from the very start.
Suggestion
Get rid of it entirely.
It could also be a built in tool that you don't have to craft (but can upgrade through tech to make it faster, emulating the Steel Pickaxe)
Something could be said about making it better/more fun, but seeing as that involves more work, simply removing it would be good enough for now. If anyone has suggestions to improve it, please share
Motivation
I don't see a benefit to having this tool.
For "experienced" players, the very existence of the Pickaxe only comes to your mind a couple of times: new game, reaching steel, whenever it breaks. Even then, you simply create another one in a second and forget it.
For new players, it can sometimes causes confusion as to why the game is so slow.
Basically it does not add fun, and can be very demotivating if you don't know you must have one (a quick forum search reveals a few posts where people didn't realize why their mine/deconstruct time was so slow)