Are you sure you want 'just' digitals?
If you have a moment, I'd like to tell you a little story.
I did a photoshoot for a really lovely family back in 2013, back when I didn't offer prints, just digitals. Fast forward a year and a half and I was excited to be asked back by the family for another shoot. I expained my new processes and we booked in a date.
After the shoot, at our viewing & ordering session, we were going through their images and the family sheepishly informed me that they had very good intentions of printing the 2013 session but had never got round to it, the USB was still in a drawer somewhere.
I can completely understand why you would want digitals; I love digitals for sharing on social media and having on my phone. This is why I offer digitals alongside print products; it takes away the time and hassle of finding a good printer, wondering what size you should have, finding a frame or a framers - it's my job to do that for you. I get such a huge buzz from seeing emails from clients with their beautiful products displayed. Your family is amazing, your pride and joy, why wouldn't you want them on your walls? :)
(p.s - the family ended up ordering printed images from their 2013 session as well as their 2015 session).