I would. Nothing ventured, nothing gained. If you had a multitude of reasons for staying put, other than just being close and available to your children, those would be weighed into the decision as well but it sounds like the move would be a positive all the way around.
I have wanted to move for years and haven't only because DD's father was adamant that I stay within driving distance of his home and he and DD are very close. But...my long term plan is to move to the USVI once DD graduates from high school. Part of my scheme is always budgeting at least two yearly trips home to MA to see my family. And I think I'll have a few visitors myself too
So, my vote is to go! You can always come back if you want or need to but in the meantime you might be staying around for kids that may move themselves.
I have wanted to move for years and haven't only because DD's father was adamant that I stay within driving distance of his home and he and DD are very close. But...my long term plan is to move to the USVI once DD graduates from high school. Part of my scheme is always budgeting at least two yearly trips home to MA to see my family. And I think I'll have a few visitors myself too

So, my vote is to go! You can always come back if you want or need to but in the meantime you might be staying around for kids that may move themselves.
I'll have no problem moving elsewhere if that's what DH & I decide to do. Siblings, aunts, cousins etc. can be called, facebooked, visited, emailed etc.