Unless youre running a massive mining operation in a location with low electricity costs (like China), then in my opinion it does not make sense to mine Bitcoin anymore.
Youre far better off investing your efforts in just buying alt coins and credible ICOs.
Mining bitcoin does that make sense anymore you will need to have a fortune to invest in it, however that does not mean that mining is a bad business, you could try to mine altcoins this is not going to be profitable in the short term but if the coin skyrockets you could make a fortune.
we can start mining especially if we have a big budget so we can buy the hardware which we could use for mining. although we need to calculate how much electricity fee that we should pay in monthly, I think mining still worth to try. and of course, we can make a living on bitcoin and I see many of my friends which only depends on cryptocurrency and they can survive and they can buy anything they want. we need to work to earn the coins so we can sell it to earn money and then we can send the money to our bank account.