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I know programmers who're not retired and who still refuse to properly learn and apply LINQ (or SQL and even .NET in general)
Perhaps it's not so much an age thing, but a mentality thing.
And not many people like learning at all when they can spend their evenings in front of the television
My parents both picked up studies at the Open University and they're well in their 50's and 60's.
Great idea, except...
The alleged cheated partner has to get permission by both the alleged cheating partner and his/hers alleged side-partner or else it isn't GDPA compliant and any evidence gathered will not be usable in court.
However, asking for permission may warn the partner that something might be up.
Of course if the partner and the side-partner are both pretty chill they'd give permission and this mattress will be great.