Three years ago my cousin 'Elsa' named me as godmother to her DD (3). I adore my goddaughter and love to buy special presents for her birthday and Christmas. I give her nice clothes and picture books all year. I put money in her bank account on special occasions and so on.
Elsa's sister 'Anna' is also my cousin, and she has three DSs (18m, 2 & 3) who are a lot of fun. I am not their godmother, I refer to them as nephews. For their birthdays and Christmas I usually send them picture books or nice clothes. I don't tend to buy them toys because their home is full of clutter.
Recently DN (2) smashed his iPad. His mother Anna invited me to buy him a new one and said 'it would help even things up a bit' if I did. When I asked what she meant by that she said that her boys are upset that I buy lots of expensive things for their cousin, my goddaughter, and that I should be more fair.
If it is relevant, Anna and her husband both work but struggle to manage their finances. Elsa's family is more comfortable and arguably less in 'need' of material support. My family is relatively well off which might be why Anna feels I should give more financially to her kids.
AIBU? I haven't treated these kids equally but is there an exception to the general rule when you are only the godparent of one of them?