Well, our Estate Planner once said that your goal should be that the check written for your final expenses bounces!

He meant that our retirement savings was for us to use. Our children know that we earned this money and not to expect a huge windfall when we die. Neither of our parents had a lot to leave their children and we did not expect it. We were able to retire at 55 and have thoroughly enjoyed it. Our money is in an IRA that we rolled our Profit Sharing into. All the money is taxed when we take it out. We also had a pre-tax account, but it lost so much in 2000, 2008 and 2013 that we finally cashed what was left out and put it in our vacation savings account. We are still taking $3000 per year as Capital Loss on our taxes.
We have helped the boys out over the years, plus paid for college so that they did not have student loans. We have tried to keep that equal. One of the boys has been more financially successful than the other, but he also works harder. He would be the one to step up if we did need anything. He has been helping his wife's parents now that his MIL has had to go to Assisted Living. We would not want to shortchange him. We have thought about asking him if he would prefer that his 50% go to his son who is now 20.