I would say this: When my two children have graduated and found themselves (suitable) jobs, the standard of my living will have improved a little.
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AlpheccaStarsWhen my two children graduate and find jobs, my living standard will improve.It sounds simple and easy.
vsureshCould you tell me if the use of present perfect and future perfect does not agree with the intended meaning the OP wants to convey?Something seems wrong with the combination of present perfect and future perfect, perhaps the aspect of duration.I'll have to think about it.