In regards to the conversation above, I don't think that anyone is saying she's TOO YOUNG to settle down (although she might be), it's just that she seems so childish. I thinking living on your own or with flatmates can be really beneficial, but it's not just the living on your own. She's clearly never had to budget, never had any bills (maybe a cellphone? maybe?), hasn't done anything with her degree, appears to have done virtually no travelling on her own, has thousands of followers and uses that to talk about outfits and Starbucks (although that might be an act, I think she used to be medially intelligent), appears to have a very childish relationship with her parents (nothing wrong with being close, but the NY video with her mom was hard to watcH). I think it will be a bit of a shame if transitions right into stay-at-home wife and mom, although at least Mommy content would be more interesting.
I also wouldn't be surprised if she just quits the internet when she's married. Her heart clearly isn't in it.