Seriously, this was like the biggest epiphany I had out of my 20s. The way to convince anyone of anything isn’t to beat them over the head into submission. It’s to drop the idea off casually, let them ignore it for a while, and watch them slowly come around to this strange idea sitting around that actually seems to work…
The way i've heard this described is "place your truth, gently, next to theirs". Then walk away. No pressure, no sales, nothing. That's the only way it can be adopted.