It sounds pretty good. No dying. You never have to lose your grandparents, parents, or children.
Except there's a problem.
That's a lot of people.
There are about 6 billion people living on our planet right now. The number grows most years. There's lots of people making babies out there. It doesn't grow as fast as it could because people die.
If we go back only 7000 years (for the young earth creationists out there) and add up all the people who were ever born, that's a lot of people. I'm no math whiz, but it's a number higher than I can count. If we go back even further, the number gets way bigger.
That's a lot of people to clothe, house, and feed. Not to mention the waste disposal issue.
I know what you are going to say: "The earth was magic before the Fall. The natural laws we have now didn't apply back then."