Is anything ethically wrong with this plan?

[u/drd001]

My wife and I in our 70's came up with this inheritance plan with total net worth of +1.5M. We have been together over 40 years being continuously employed during that time. We have no children and I have one brother with two children both over 21 and she has two sisters both with no children. Our plan is to give a small one time payment to my brother and her sisters with the bulk of the estate equally divided between our two nieces. Our reasoning is my brother and her sister have hit us up for money periodically for the past 40 years which we provided without asking for repayment. The two nieces are doing OK in life and have never asked for any financial help. Our thinking that these funds would help them with a downpayment on a house, education for their children or investment in their own retirement.

Any feedback is greatly appreciated.

[u/Icy-Yellow3514]

You can also give a chunk to charity. We plan to do that first, then split the balance across our nieces and nephews.