My view is a little more nuanced, having had close friends who were "PKs" (Preacher's kids). I don't think anyone, married or celibate, should be ordained before 40 without special circumstances. Men with families should be ordained only after the children are grown. The pressure on clergy families is immense, and the children deserve a normal childhood. The word "presbyter" from which "priest" comes has Greek roots associated with "old man", suggesting that the earliest "priests" were elders, not 20-somethings. But for this change to work, the role of priest as the primary leader of the church must change, too, so he can work outside the parish and let laity control more community services and functions. This would equalize power and make the parish a true body where many gifts are recognized and used. Married clergy without an older ordination age and  change in lay roles would solve only part of the problem.  Celibate or married makes no difference.