@xeonome You make $170k a year but do a Roth 401k? Why?
If you are going to retire at 50 and all of your money is in a 401k and a Roth IRA....where are you going to pull your retirement income from?
Kids costs about $350k each to raise so having two of them is going to toss this plan right on its head.
You make $170k a year now and are saving with that and you have to pay taxes both income and payroll on it. Why do you want $170k a year in retirement when you dont need to save (more spending money) AND you dont owe payroll tax (even more spending money) and if it comes from Roth you dont pay taxes at all (like 2x the spending money).
The average life expectancy is 77 because sometimes babies die and that brings the average WAAAY down. Basically if you have 8 people and 9 of them live to 96 years old and two of them die at 1 year old then the average is going to be 77. If you have lived to retirement the average age of someone is considerably higher than 77.