Seems this is US-only usage, maybe it's not universal there, for me in the UK pocket money has all the connotations of childhood, I'd only use it to be delibera

Seems this is US-only usage, maybe it's not universal there, for me in the UK pocket money has all the connotations of childhood, I'd only use it to be deliberately patronising, it's like a full reversal where allowance makes me think of a meal allowance from work etc.