>> Those who are not called to celibacy need not apply. It’s really just that simple.
Given the case of Peter, that seems like a rather arbitrary rule ... and one likely not acknowledged by Christ Himself when selecting apostles.
SnakeDoc
The only thing we know for certain about St. Peter is that he had a mother in law. We do not know if his wife was still alive. We also do not know if any other of the disciples were married.
You should start with Christ. He had no earthly wife.
Incorrect.
"For there are eunuchs, who were born so from their mother's womb: and there are eunuchs, who were made so by men: and there are eunuchs, who have made themselves eunuchs for the kingdom of heaven. He that can take, let him take it." Matthew 19:12
"Then Peter answering, said to him: Behold we have left all things, and have followed thee: what therefore shall we have? And Jesus said to them: Amen, I say to you, that you, who have followed Me, in the regeneration, when the Son of man shall sit on the seat of his majesty, you also shall sit on twelve seats judging the twelve tribes of Israel. And every one that hath left house, or brethren, or sisters, or father, or mother, or wife, or children, or lands for My name's sake, shall receive an hundredfold, and shall possess life everlasting. And many that are first, shall be last: and the last shall be first." Matthew 19:27-30
"Then Peter said: Behold, we have left all things, and have followed thee. Who said to them: Amen, I say to you, there is no man that hath left house, or parents, or brethren, or wife, or children, for the kingdom of God's sake, Who shall not receive much more in this present time, and in the world to come life everlasting." Luke 18:28-30
"But I would have you to be without solicitude. He that is without a wife, is solicitous for the things that belong to the Lord, how he may please God. But he that is with a wife, is solicitous for the things of the world, how he may please his wife: and he is divided." 1 Corinthians 7:32-33
The question you should be asking is not why Priests in the Latin Rite are celibate but why aren't all ministers; particularly those who claim to be Bible believers, following the examples set by Christ, the Apostles and St. Paul.