Would it be worthwhile, for example, to make a Sharp 5 Stonesword because you have no problems with the materials (I mean to get them) and it is accordingly easy to repair (this question also applies to the other tools)
Iron can also be found without problems, especially later in the game. In addition, you can't repair forever, it is too expensive.
Wait until you have a repair book and do it on diamond. It doesn't matter with repairs anyway.
No, it is not worth enchanting stone tools.
Enchanting iron tools is already worthwhile, but you should simply look for diamonds.
Tactics with which I found the most diamonds:
Go to level 8 (press F3 and then look at the Y coordinate) and just straight out.
And to find iron, you just have to search the caves.
