Just received a request for a decent chunk of money from Parent and Step Parent. Said no as felt the request was unfair and should be directed towards corresponding half and step siblings. Usual reason being that those siblings received a lot more than I did from them growing up - independent schooling, cars etc whereas I did not since step parent generated the cash. Trying to explain that it’s not about resentment but fairness. I simply feel that any money should flow back from the same source it flowed to? For clarification siblings not really in a position to help but I don’t feel it’s fair that I’m effectively penalised for taking better advantage of less opportunity. AIBU?