Ch 2 tier system requires lvl for each skills
T1 -> Lv. 0
T2 -> Lv. 20
T3 -> Lv. 40
T4 -> LV. 60
T5 -> LV. 80
you'll need certain skill lvl of that specific industry not just to collect / craft but also to plant / place industry in your land 😂
also trees in NFT land aren't traits anymore it's an item you've got since beginning of chap 2