What percentage of kids do you think make Roblox mods?
What percentage of those modders do it for money?
Does Roblox provide childcare, lunch, physical education, face-to-face interaction, enforced time structures and social hierarchies, and/or extracurricular activities?
I honestly do not believe they're remotely comparable. They serve such drastically different purposes it feels like comparing baseball to banking. We might be able to call one better, but I believe which one will vary wildly between kids.
I haven't actually tried playing Roblox or researching it, so I don't know about the percentages, but I'm mainly speaking about the idea of using creativity, to create fun games you enjoy creating and the end results being:
a) other people are playing what you created
b) you get paid (even if in small amounts) for what you created
Would have been amazing for my otherwise low self esteem childhood.