Along with network infrastructure and mining infrastructure, electricity is one of the most expensive costs associated with mining. Electricity consumed by mining machinery is expensive when compared to the energy required by those machines to mine. He's come a long way and reaped significant profits from his investment.
Every venture carries its own risks and this includes Bitcoin mining. Mining may be less risky but it is more difficult for humans to mine than to trade. Nowadays if you don't have a significant amount of savings, you cannot mine and if you have chosen the crypto markets as an economic exit, there is not much that can be done other than trading or researching projects. The original idea of mining was that anyone with a computer could become a miner. Now we see that those who profit from mining are big investors with new and expensive equipment. The original idea is now obsolete and it's not possible for anyone with computer to be able to mine.
Most of the people do not have mining facilities and they have to trade to multiply their money. Making smart moves and mastering technical terms while trading will bring success in trading. Finally trading or mining both have their advantages and disadvantages. I would not recommend people who are new to this business to start mining unless they have large capital. With direct mining, there is a risk that your equipment will break or the difficulty of a block increases sharply, electricity costs skyrocketing. Even if you buy and trade Bitcoin directly, the risks lie in storing your cryptocurrencies and losing your bitcoins in trading. Would you rather trust them on the exchange or keep them yourself with a hardware wallet? Either way, there is a risk and whether you choose to mine or directly invest in Bitcoin depends entirely on your style, capital and preferences.