Computers and cell phones are On all day long on many cases
They are on but not on sites which are using hidden browser mining. You don't see that as unnecessary electricity cost? Not to mention all adds are eating CPU power and it spends electricity.Btw, how do you know that faucets are not mining monero using their users CPU? Do you check task manager each time when you visit them? They can use for example 50-60% of your CPU power and you won't even realize it.
People don't set it on just to claim on faucets. They use it for different activites and meanwhile, when there is some free time they claim some satoshis and accumulate it.
What can you possible earn if you claim from faucets while you are waiting for something?I'll rather wash dishes or take garbage out than claim from faucet, it is much more constructive than claiming 15 satoshi from faucet.
Lol, Some years ago there were people talking like you about faucets and now I'm sure many of them regret about not claiming 400-8000 satoshis from faucets on those days...
Imagine if you haven't ate pizza and beer for 10$ and you bought bitcoins worth 10$ when bitcoin price was 300$ now you could have 230$. Isn't that much better than claiming from faucets? Comparing time and effort - buying bitcoins for 10$ - few minutes, claiming from faucet - a month? Nothing has changed in my opinion.
And if you use only real good faucets you won't waste your time at all... You will spend few seconds every hour with the chance to earn hundreds of Dollars in BTC or Doge (FreeBitco.in and FreeDoge.co.in faucets).
Don't be naive. How many times have you won 200$ from both sites? Or just one? How many users have won 200$?
I'll tell you how many times I did in last year and a half - 0 times.
What you could earn and what you are earning are different things.
Well, naive for me are those pessimistic that are unable to think on long term...
I think to click a "Roll" button without even solving a captcha every hour doesn't hurt anyone. Much better than physical lottery.
Asking today if faucet's income pay electricity bill makes faucets look really bad.
Can you cover your internet and electricity bill with faucets? You know, they are cheapest bills in most countries. Can you cover at least one? If you can't cover at least one bill every month it is waste of time, if you need to spend 8 hours every day to cover only one bill it is waste of time.
but to buy even more expensive items (who knows a house?). 
Only if you are one of the early bitcoin supporters when faucets were paying lots of bitcoins(not dollars) and you didn't spend any of them. This is probably a joke, do you realize how much bitcoin has to worth for someone to buy a house just from faucets?
