So glad that you asked this.
My land is 13.5 miles from my home address. I don't drive. I think if you drive and have a suitable vehicle, all things are possible. I was cycling to my land, I'm very fit and the journey was easy, that is until I came off my pushie and dislocated my shoulder. Getting to the land became a little bit of a problem. 9 mile bus ride then a 3.5 mile walk. Twice a day. Now I run because I have most of what I need on the land thanks to family and friends moving stuff for me and thanks to my trusty shopping trolly that I could load up with stuff when I needed it.
I've had to consider security very hard, I do worry about how vulnerable my stuff is. However my land is not on a road, you have to pass through fields or someone's arden to get there. Not easy. There are a couple of people who wander about my land (uninvited, there is no public access but they come to observe the wildlife (I have a hornets nest in my barn, amazing to watch them working), anyway those people have my contact details if they spot anything untoward).