why do I have an aversion to sockets etc in cupborads?
well firstly some folk reckon than cupboards and wall units say in a kitchen are not part of the building fabric so that makes it a no no - I do not follow them on that idea because unless they are purely temporay I think they are usually intended to be at least semi permanent - no that`s not usually a reason.
Secondly - I think it usually a potential advantage to readilly know quite easily where such things probably are, not just strictly speaking as isolators rather than to be able to identify them pretty quickly if need be say equipment faulty , escape of water, smoking, melting etc etc if needs to be disconnected fairly quickly rather than hunting round to find it and say throw the whole electrics to a home off (which might be in darkness etc) .
Thirdly - probably equally important if not more so sometimes.
Quite often cupboards are full of pots and pans and jugs etc rendering sockets etc not always easy to see and its not recommended to be bashing such stuff into them, its also far from ideal for any flexes etc, ideally I would count these reasons alone as a no no.
Note - if a socket is behind an appliance etc and likely difficult to access, that in itself does not usually cause me great concern but I think it usually appropriate to have some additional means of easy switching off quickly such as a switch or even a SFCU say above worktop or some fairly nearby place.
We all have our Quirks and Foibles, these are just some of mine
PS - yes I do realise that a SFCU buts another fuse in series with a plugtop fuse so it might be one or tother or both that blow at a time but I would prefer that scenario to not having any means of esy switch off - ideally (to me) say a 20A DP switch would seem more suitable but sat least 32A or say 45A could be a better choice on a 32A circuit, I will duck down with a tin hat on for that comment