The problem is that more convenient corporate-owned options take over, become the standard, and then the cost of running free software skyrockets. Nobody in my friend group uses Signal. I haven't met a single person IRL who has a smartphone that isn't running on either Android or iOS. The fact that not everyone looks at me like I'm taking crazy pills when I suggest Firefox over Chrome (Firefox having its fair share of drama though) is already a huge win. I'm the only guy actually running Linux as the only PC system.