For tinder to be as meaningful resource as wood

[Eames]

The problem (I know some don't consider it as such) today is that it's too plentiful. Keep it infinite but make it harder to get from sticks. This would increase found tinder value. Right now you can spend 5 minutes and 1 stick for 2 tinder – that's nothing. I propose spending at least 10 minutes and 2 sticks for 1 tinder.

[MarrowStone]

I agree, in real life, finding/making the kindling and tinder take up almost half the firestarting time.