Ever read "do not use the name of God in vain"? It enriches one's life to have petitions that are, perhaps, trivial in the grand scheme of things. For these daily tasks we ask the assistance of saints. Usually, humility (and the scripture) forbids asking Jesus for it.
And if you don't think kids take away time from your wife, then, as an experiment, send them off to camp
Is it your suggestion that one should lay off praying to saints every once in a while and concentrate on Jesus in isolation from His Church, in the same sense in which it is helpful to send the kids off to camp once in a while, and devote all the available time to one's wife? Perhaps, and some couples do that, although quite often one finds that they miss the kids the first-second day. But this is not an argument against praying to saints in principle. Or are you saying that I should give my children up for adoption in order to better love my wife? That would be analogous to the what Protestantism suggests we should do; but to give up my children would be a betrayal of my wife, and giving up the Communion of Saints would likewise be a betrayal of Christ.
Where does scripture ever forbid a believer from asking Jesus for anything? There is no humility in bypassing Christ, it just shows Him that for you, there is someone higher on the list than Him at that moment.