Never look back on what you think you missed out on. I say this because of the state your in now. You would have missed on all of that. Is constant touring ok with you? Now what about the wife and the kid? You could possible have both, but that dosen't allways make the grass greener. It's just a different shade. And one that may not work with the life style you want.
You can paint the house, change the furnishings, but you can't paint the grass.
Cudaspaz has a excellent point. Who knows, you could have joined the band and made it to a point of ethier bad drug addiction and/or getting kicked out of the band. Then you would have possibly missed out on both.
No go play ball with the young one and tickle the crap out of them.