Especially if you have kids and a house payment.
Let's be generous and say you earn 4%, net of all fees (I think a tough ask in this environment with where yields are, but still)..
That gets you $96k a year. Let's say taxes eat 25-35% of that depending on the state you live in, we'll round you to $75k after taxes (and we won't mention tithing...)
$75k / 12 = $6,250 a month
Now, if you don't have kids and your home is paid for, then I think you are fine. If you do have kids and a mortgage payment, that would be really tough.
**Edit: I don't think it would be really tough to live on this, I just don't think the assumptions are realistic. You're banking on 4% with incredibly low yields today. In order to get 4% in today's market you are investing in high yield bonds and taking a lot more risk, and you are not investing your principal in stocks and growing it.