I wouldn't know why I needed a portable computer I suppose. I step outside and want to be amongst nature, or with a friend maybe, or even shopping. None of those things need my computer. I only keep the 'phone on so that Mr PW and more importantly Jesii (more likely to need emergency Mum assistance) can contact me.
It's not that I have an issue with all the tech stuff (apart from not knowing how to use it of course) I 'm just not the kind of person who feels any need for it