CardsFan
Thinks s/he gets paid by the post
Now most of our estate will transfer to our heirs via beneficiary designations for financial accounts and/or enhanced life estate deeds for our properties and I presume that it would be harder for someone to make a claim for those than to contest a will. There is next to nothing that will pass via our will so they can give it a go if they wish to but it will cost them money to contest.
This what we have done, as well. We only have one DS, and he will get everything (though we intend to do some significant charitable giving when get to RMD's). We still have a will to cover possessions and anything we might have missed, but over 90% (probably over 95%) of our net worth will transfer directly upon the last one's demise. Our will is over 20 years old, but I don't see a need to update it. He did recently get married, but we will leave to him to decide how that is handled.
For the record, DS is over 40, and very conservative with his/their money, so we are past the point of worrying about giving a younger child a boatload at one time.