Zoho Drive vs Zoho Docs

Zoho Drive vs Zoho Docs

Hi
We have just started with Zoho. I've looked back over past questions about why have both the drive and docs and not much seems to have moved on in the last 10 months. 

I'm using Zoho docs for all file management but would prefer to use Zoho Drive as it's integrated with mail etc but my big issue is that when I want to send an email and attach a file it doesn't give me the option to attach from Zoho drive which seems very strange.  for that reason why would I move file management to Zoho drive which I see you say is going to be the place you migrate everyone to at some point? 

We don't have to many files up there yet so I can easily move over to Zoho drive if this email attachment issue can be improved. 

thanks

Nici