I started playing this game like 1 month ago, and of course being a newbie I started experimenting leveling up things that I thought were useful, but actually are pretty garbage in one class, the changed to another class just not to get tilted and leveled up other skills which were also garbage.
I like reading and learning about the game and also trying new stuff, like I went and leveled the techer poison buffs to use be Ra/Te with a poison rifle just to learn later down the road that most bosses are inmune to the Poison Status (Which is not mentioned anywhere outside of hardcore reddit posts). So allowing people to reset skills maybe one or twice for the first 2-3 months of account creation could be a good way to promote people trying new builds and trying new playstyles and not only googling: "Best Ranger build" and copy that.
Just making the skill reset tickets available for real money could be fine by me, no problem in dumping 5 bucks in resetting the skills of a character I like.