So, as very much not-a-morning-person that's kind of a non starter. I'm not going to be in shape to play ranked for at least a couple hours, and then I need to leave -lots- of leeway to actually play the game just in case it runs long. With a slow queue, queue dodges, champ select time, and a possibly hour long game, I need to leave a good hour and a half just in case. Getting up 4 hours before work to play a single ranked game per day? ... simply not practical.
Also, on general principle, this doesn't seem like a successful strategy - it's like many other ELO hell arguments. If you play in the evening, then 5/5 enemies have a chance of being a 'kid', while only 4/5 on your own team have a chance of being a 'kid'. (Assuming that being a 'kid' is bad, which hasn't really been shown, and considering that a number of players have had to delay their professional debut to meet the 17 year old age limit.... it doesn't actually even seem likely.)