I really empathise with you and @Papasmurf too. We’re very lucky and blessed to have found Sapien Medicine. I’m grateful every day for the work Dream does and the fields he and the team create. 
Sometimes people are more resistant to accepting new possibilities shared with them because they are more afraid of the concept of something that they don’t understand being so helpful; it’s a new concept away from the familiar and what feels safe to them, even if there is nothing to lose. When they’re told that something could help create a really big change, it’s a bit like being asked to leap into freezing cold water all at once.
Sometimes people are more open to accepting the idea of trying something when it’s presented to them from a positive perspective they already accept.
If you feel it might work, here is one idea if the audios you want to share have relaxing sounds. You can tell the person that the audio has pleasant sounds and might be something which can be relaxing to listen to every day.
Relaxation can always be of help with healing, and chances are the person will feel more relaxed as the audio helps them.
Perhaps you can even share something like the Relaxing River Portal and let them know it’s made by the same creator, as listening to relaxing nature sounds is well known and something most people find relaxing.
You can also try Powerful Positive Vibe Energy and A Belly full of laughter, as those seem to work immediately and noticeably for most everyone, whereas some of the other audios may take a little time to experience.
Once a person has a bit of familiarity with experiencing positive things from fields, and confidence that it feels good to them, they might be much more open to trying more things.
@This_Boy_Here Generalized Adult Stem Cell Treatment or Fat to Stem Cells have a relaxing sound. Brain Regeneration and Nerve Growth Factor do as well if you skip past the first 7 seconds of the latter and they would probably help her.
Dreamweaver recommended the two for a similar situation a while ago:
Perhaps you could see if your friend can play some of these fields for her niece as a relaxing sound when she visits her niece. She can see whether she likes how she feels while listening to them. If her niece likes them, she may develop a natural interest and curosity about them and want to play fields more often or find out more, especially as we’re often much more open-minded when we’re younger because our brains are more plastic.