"Sandbox (aka Training) mode" Please stop treating these the same way, we need both of them.

A training mode and a Sandbox mode are two different things! Yes you could use a sandbox mode to help yourself train but you could do so much more than that!

A quote from Riot: "(Quick caveat: when we say sandbox mode, we’re specifically referring to a training mode where players can practice core skills - not a sandbox ‘modify your game in any way’ mode.)"

Well that is what a sandbox is! It seems like you're just trying to hit 2 birds with one stone by labelling this a sandbox mode...

Riot, a training mode would be absolutely amazing.

A sandbox mode would also be absolutely amazing.

You talk about wanting to have league as something to grow up with just like "basketball, baseball, or soccer" well how many times have people made their own versions for fun, to experiment, when you think about it this way then a sandbox is actually vital to achieving this, not every soccer player is a professional, I'll give you an example: When people are little kids do they play the sports properly? Sometimes yes sometimes no, but goofing around and bending the rules is a part of what can make it so fun!

TL:DR A training mode and a sandbox mode are completely different things, Riot, we need both of them.

(This is in reply to: http://na.leagueoflegends.com/en/news/riot-games/announcements/riot-pls-dynamic-queue-sandbox-and-league-2016)

(Let's all be honest, a sandbox mode would be extremely fun).