Sending 🫂... If that's his choice then let it be, I'm more fond of RSO but depending on his jurisdiction and personal preferences it might not be available nor wanted... Just take it as it comes, focus on positives and don't regret things you have no control over. 
As old Chinese proverb goes: 
https://njump.me/nevent1qqszvj9ck24nyltfmcky6n0es7g6rx2snmh8savlpnhdasd3s5ef2rgpz4mhxue69uhkummnw3ezummcw3ezuer9wchsygxy3c5lqj6g9nqpeg0ea7xgdmurrrq9nc8fx5er2930pq8jdc2vzypsgqqqqqqst9k0u0 

 Thank you 🫂 I believe in autonomy so I respect his choices, but he has tried RSO and is continuing to try a bunch of holistic treatments in addition to western