Sanity check - crafting job skip potions?

[Penthea]

For the same reason someone uses the MSQ or Job skip pots, because the lower levels are a mostly irrelevant boring grind. 60-70 crafting offers goals for housing, pets and glamours. There's the master craft books, getting mats to make rare outfits and being able to use materials farmed in endgame areas.

You can craft furnishings before lvl 20. Glam gear and pets start at lvl 50. The first mastercraft books can be obtained at lvl 50. Some lvl 50 furnishings sell for several hundred thousand gil. Crafting is relevant and profitable long before lvl 60. Especially with how in FFXIV crafting materials don't become immediately useless as soon as you lvl up past a certain point. Lots of high lvl crafts need lower end materials. Also cosmetic items never completely lose value, particularly if their materials are rare or if the craft is from a masterbook.