The problem is how can we incentivize people to switch to using solutions
like the LN in the first place.
It's actually pretty simple. What made people love Bitcoin initially? It were instant faucets, instant bets (betting without confirmations), smaller payments that we right now consider dust, etc. If you can bring all this back, people will fall in love with it, especially all the newbies that are using shitcoins for these purposes right now.
Of course the LN is cheaper than credit card
payments by a magnitude, but the average user isn´t really aware of the
costs that are associated with credit card payments, because they are
hidden in the end price by the merchant. I´m not even taking into
account other advantages of legacy payment methods like
fraud protection or cashback and reward schemes here.
If you offer your products as LN merchant for a lower price than all other legacy merchants, you can be sure of the fact that people will notice it. The only thing legacy payment services do better is offer buyers protection, but it's a straight nightmare for merchants. You should know how much merchants are losing on a yearly basis due to false charge-backs. In case of larger merchants, it can add up to tens of thousands every year.
I´d argue that the better use cases for Bitcoin are still
being a store of value and being a means of making
censorship-resistant payments. The use as a payment mechanism
is just the icing on the cake, but not the main driver for the long-term
success of Bitcoin.
I strongly believe that Bitcoin's utility as a currency is just as important as the store of value aspect. It may not be like that for you personally, but I'm using Bitcoin as money almost on a daily basis (even more so than fiat) and it's incredibly important to have it advance to the next level with LN.
Gold is an overpriced piece of metal that has no real utility other than some minor industrial and commercial uses. Gold's store of value aspect has been lagging behind due to how it has no other utility to use as back up, and that just points out how important it is to have Bitcoin not become the same redundant asset.