Well, realistically they could create their own account, it just wouldn't be "free". Anyone can create an account for a fee of 3 STEEM (currently). It's just difficult at the moment, requiring some technical knowledge.

Also on the topic of "free" - it really isn't even free right now. Steemit is paying to create an account for everyone that chooses to register with facebook or reddit. I assume this fee is being paid with the STEEM that the organization itself has set aside for this purpose. In fact, we can look at the creation of your account here:

https://steemd.com/tx/3f6f4dcffd90c0075831f6685f2f61e3685a5f9a

After reading a few posts (this one included), I do think that some clarity needs to be given around the topic of account creation. I wouldn't be surprised if the "free" accounts we're creating right now by verifying with social media won't exist in the future.

But - the sentiment in your post is accurate. There are people out there who can't create the "free" accounts and it would be nice if they could!