Bitcoin has dead in many ways as others claims but look at the current conditions of bitcoin in the market. It is continues to be more popular and it has a massive adoptions. Why using Bitcoin for sending out a small amount?If fees the issues you may use other option. Also, a lot of people appreciate to use of bitcoin because of it's freedom than banks.
That's true and despite so many altcoins being made which work cheaper and faster but still it is bitcoin that is going and moving strongly while altcoins come and die and that I believe is because bitcoin is seen as the parent of all these coins and none can match the credibility and robust system that bitcoin is based on.
Lightning network, proof of stake, or whatever they can do, bitcoin needs to move to a direction where it is instant and almost free. If we can do that technologically, that means we are going to have bitcoin over $20k instantly.
I guess in future Bitcoin transactions will be made by bigger traders while small transactions will be made in low cost transaction based coins like Tron and Ripple and there is technically no way to bring the cost of BTC transactions down.