Because if you have bitcoin and fiat to pay for that coffee you can
- spend the fiat and basically do nothing for adoption
- buy bitcoin with fiat and pay with that coffee with LN, you still keep your previous stash intact and you use the fiat you were spending anyway
I usually see you write potent arguments but what you just said seems to me to be a joke. It had to be at some point, I guess.
The growth of LN and Bitcoin adoption has to come because of a demand and a need for real usage, not because some Bitcoiners try to increase usage in an artificial way like that.
there will be other subnetworks that offer utility away from onchain use, but LN is not the solution