NMJ, this is terrific! You can also tell your dad for me that I was able to totally quit a 38-year 2 pack/day habit within 2 days of vaping. And I had literally tried every cessation product on the market without success. Now I breathe better, feel better, can even jog and run without getting winded. Plus it's really nice that this lady no longer smells like an ashtray.
When I started, I did not seriously think I would quit smoking -- but thought it would be nice to have an alternative for those situations/places where you can't smoke and you could at least stealth vape to get your nicotine fix. Boy, was I wrong. I liked it so much it only took me a couple of days to leave the analogs for good.
Good luck to your mom -- if she sticks with it, she'll probably put the pressure on your dad to at least give it a try.
SNM, all we can do is tell people about it. Your dad can still come around though, so don't give up. He might just be watching you to see if you have a relapse. Not fair, I know, but that's what people do, even our parents.
My 77-yo mom is dying of end-stage lung cancer and doesn't have much time left. I bought her a kit a couple months ago, but it was just too late for her. But it's not too late for most folks, so we have to keep telling people about this fantastic product.