This is by no means average. $30k is well under the average income that most people in the US have. Unfortunately most people also have debt so this would also not be "average"

You need to add how old you are. It would take a lot more money to retire if you are 30 then if you are 70 as your money would need to last a lot longer. If you want your money to last forever then you would need enough to purchase an immediate annuity that pays "forever"; I would say that the long term expected rate of return for conservative investments would be no more then 5% so you would need $6 million $600K to get $30k every year forever, however this would not be in today's dollars but rather a fixed amount.

You would need to say what you expect the long term inflation rate would be in order to accurately calculate how much you would need to keep your draws indexed to inflation.