It's all about asking people and merchants if they would accept Bitcoin or Monero.

Strength in numbers means that I asked hundreds of people dozens of times.

Today I can pay for 80% of my expenses in Monero. It's a tiny revolution. But you can do the same and all those millions of Bitcoin holders could, too. Estimates tell us that 500 million people on this planet own cryptocurrencies. Only 0.01% of those would be a small army of 50k people driving adoption. But I guess the people really living on a Bitcoin/Monero standard are 1,000 to 10,000 people at the moment. Negligible.