Please note that when playing local multiplayer, one Switch can support 2 players, so that means in order to play with 10 people you need 5 Switches. It can support a maximum of 12 players. Well more than that, at least 50 in Splatoon. Maybe you mean in person local play?
Unfortunately, Roblox is not available as an app or game download on Nintendo Switch or Switch Lite. As of January 2022, you can play Roblox games on PC, Xbox One, iOS, and Android only. Although you can open up Roblox.com via the browser on your Switch, you won’t be able to actually play the games on it.
Therefore, it is impossible to play ROBLOX on a 3DS, as ROBLOX has found it not to be a good idea to push a player application for that platform. Is the 3DS XL discontinued?
As a general rule, though, the ESRB recommends the child be at least 10 years old in order to play Roblox. That should cover everything you need to know about how old you need to be to play Roblox.
E10+ games are described as “Content that is generally suitable for ages 10 and up. May contain more cartoon, fantasy or mild violence, mild language and/or minimal suggestive themes”. As for Roblox, it does contain fantasy violence, according to the ESRB website.
For starters, Roblox is entirely free to download. That’s right; no need to spend your hard earned money, so it’s got a low barrier of entry. With that, there is no physical version, though, so it *must* be downloaded. If you’re wondering, Roblox is an online multiplayer game-creation platform, in which players can create their own worlds.