Bitcoin mining at home is actually no joke in this day and age. Especially if you know yourself that your electricity consumption is expensive. But if your electricity is cheap, I can say that you should continue mining bitcoins at home.
And you must have knowledge about bitcoin mining as well, it won't be possible because you just thought, or you just heard that your friend is making money from bitcoin mining, it's not like that, remember that.
Even if one has very cheap or free electricity, Bitcoin mining isn't really as profitable as it used to be in the past, especially if you are trying to do it at home. I think a person would only waste the money he spends on the hardware bought and will get nothing as much as he wishes for since the difficulty of mining blocks is becoming more and more over time.
A miner will need to have very high hash rates in order to be able to mine blocks and even after that, he wouldn't earn as much as someone might think. So basically, mining isn't a profitable thing anymore. I would rather buy and store Bitcoin than have a hassle like that.