Welcome Worzel. I too have been trying to figure out my best friend (who has COPD) and my son. They both have been telling me for years that they want to quit smoking. Both have tried many times with the patch, nicorette, my friend with Chantix and even cold turkey. Neither have been able to quit.
I really thought that once they saw how well I was doing with vaping that they would at least want to try - but nope they both congratulate me and say how glad they are that it is working for me. The last time I tried talking to my son - he indicated that I was lecturing him - standard "kid" behaviour - even though he is 33 - for I don't want to hear anymore.

So I now wait for him to come to me
Now with my best friend - I have never once indicated that I want to quit smoking. In fact I have always smoked more than she has and basically have told her in the past - when she was trying to quit and I think wanted me to try with her - I DO NOT want to quit smoking. I like smoking and - well we all have to die from something right
So that fact that I started vaping to just cut down on my smoking - but actually liked it soo much that I have not had a cigarette in over 6 weeks - just amazes me. Just last week when I was talking with her about my other son quiting with the patch (he has tried many times too) and that I gave him the information on ECF and vaping. I told him that if the patch doesn't work - please give this a try before you start smoking again. Well her response to me was - well he has to want to quit - or it won't work either.

Well all I said was I don't want to quit smoking - but somehow I just did
So - all I can figure out is that it just goes with the age old smokers resistance to anything or anyone "trying to make them quit. I know I have been there - in fact I was there just 6 weeks ago. Did I say I DO NOT want to quit. So for me it is just frustrating (since I wouldn't and don't even suggest to any smokers that they should try this, unless they ask about it) that neither of these two will even consider it - any they tell me all the time that they want to quit
I was hoping that if I just continue myself - that at some point they too may decide to give this a try. It looks like you have been vaping for a longtime now - so I guess I might have to wait a long time for these too as well. Anyway - good luck with your Mom