Hi @Ferret
Welcome to the forums. Thankyou for sharing your story & concerns for your mother in law.
I am a little agoraphobic myself. I feel overwhelmed, especially in large crowds. Places I am unfamiliar with can make me anxious, because I need to feel safety in knowing what to expect.
I was also in complete denial. I think I realised that I felt anxious, although I told myself that if I needed to go out, I could - therefore, what was the problem?
Your mother in law likely does not see it as being as big as issue as you.
I personally prefer my own space. I do make an effort to get out every few days.
When you say that she doesn't leave the house at all, it makes me think she is feeling very fearful. Agoraphobia & anxiety are a vicious cycle. The less you go out - the more anxiety you feel about going out etc.
She probably could benefit from some therapy. If she refuses medical help, maybe you could try introducing something like a meditation app.
Meditation can be a fantastic way of learning new skills to overcome anxiety. Eg. I count my breaths when waiting in line!
Smiling Mind is really good free app for beginners.
I think it comes down to her level of fear. Yes, it's irrational, however if it has been building up over 4 years, it is very real & significant to her & really deserves patience & respect.
How else could you or your family increase her feeling of safety?
Maybe a little dog to take for daily walks?
Maybe encourage her to go to the letterbox, the next day go to neighbours, the next day - walk to corner etc.
Hopefully this has been helpful, or at least maybe given you some different approaches to think about?
Kind regards,
maddison