Answer:
Timid or weak people are said to not have these.
Barren location, infertile and dry; my name means "to leave", it's not heard to see why
Temporary evidence of where you've been strolling
Something you carry while singing.
If the day before yesterday is the 23rd, then what is the day after tomorrow.
Though not a plant, has leaves. Though not a beast, has spine. Though many wouldn't need this thing, It's more valuable than wine.