That really just depends on the scale they are personally used to though, for a fair few years I lived ~5 hours from my family (relatively far within the country), but it didn't feel like very much because I/we visited my partner's family on the other side of the continent at least once a year. Prior to that, I don't think that I would have visited anywhere near as frequently.
The lack of Schengen and now EU membership may make British people more prone to being on the smaller side of this.
Talking from experience, if you write cursively whilst having bad enough handwriting, it can become a reasonably effective form of encryption in general.