Do you think it is possible to have a reasonable and respectful discussion about how much is too much to spend on Christmas gifts per child and how much is too little?
I don't see how that can possibly happen. Even if you created some algorithm that factored in the family's finances and the children's ages I don't think you will ever find any widespread common ground on the issue. More importantly I don't think that people can answer honestly without offending someone.
Apart from saying I don't know and I don't care I think that the question is going to be a sticky one.
How much is too much to spend per child on Christmas?
How much is too little to spend per child on Christmas?
Neither infinity nor zero are acceptable responses.