I kept up my allowance for 2 months just to buy adequate UC to get the Lucky Spin Royale pass
https://brookszpsv771.raidersfanteamshop.com/casual-scrub-vs-hardcore-spender-who-buys-more-pubg-uc
I saved up my allowance for 2 months just to buy adequate UC to get the Lucky Spin Royale circulate, making the grind absolutely worthy it.