> Of course Roblox have more player, but does your child really need millions of players?

Nobody uses platforms because they are are looking to exercise billions of options. The point is easy commonality. You sit next to a kid, and, what do you know, they are into Roblox too. Cool. Wanna play?

It's the difference between getting a trickle of random players on the map vs. never ever seeing another player.

For Minecraft random people are more of a nuisance than an asset, but for a Roblox obby there is an expectation that other people will check it out.