First of all, lighten up on Kiel. I'm sure he didn't mean his wife actually wouldn't let him go or leave him if he did go solo. And I'd be really surprised if the rest of you don't ever compromise on anything with your wives. "My way or the highway" on all issues isn't a good strategy for a long term marriage.
Kiel, if this is really a touchy spot with her just get her to agree that the first time out will be a trial run. When you come back unscathed after the first trip, she'll hardly have an argument against you going solo again. And after each trip, she'll relax a little more. And get the InReach. And then send messages like "I think a mountain lion is nearby, if you don't hear from me any ......." That should help. :)]
Let me tell you a story about a wife who was not keen on her husband going solo. And he didn't tell her that her concerns were meaningless and to get in the kitchen and cook him breakfast before he left.
Before we start, a confession. My name is Randy, and I'm a loopaholic. I hate to retrace steps. I know the trail looks different on the way back but I don't care. It's still the same pass, lake, stream, etc. I love to loop and plan almost all trips this way.
My wife was, like Kiel's, ummm, not thrilled about me wanting to go solo. I, like my macho brethren, wasn't planning on not going, but figured I could also present a reasoned argument on why it should not be an issue. (And then go anyway if it came down to it. And demand breakfast when I got home.) I suggested getting a SPOT so she'd know I was OK. And then got her to agree that she knew that I would, for the most part, just be walking. She somewhat saw the light and was cool with me going out for a trip but wanted to see how it went. It went fine. And each trip she relaxed a little more. I went on a last minute overnight earlier this year and forget extra batteries for my SPOT. No message was sent and no concern registered as I always so no OK message means nothing.
So fast forward 4 years. I'm still a loopaholic, but my wife, who was once reluctant for me to go solo at all, is now a "backpacking enabler". When loops aren't practical, she hasn't hesitated to drive up to 3.5 hours round trip to drop off a car and drop me and my dog off at the other end.
So ignore all the tough talk and work the issue out with your wife. Hopefully, you too can be married to a backpacking enabler. :)