Bitcoin could be earned when it was still in its early stages but now, you can only earn as a miner, but you can buy a small amount and hold it.
Why small amount? I would prefer to have my money in bitcoin after a significant bear market, the best time to buy bitcoin. Well, I can accept that people should buy small amount, but they should know that bitcoin is a speculative asset and can be a store of value and a hedge against inflation in long term.
People can speculate, buy bitcoin and still earn more money from it, a way to invest in bitcoin.