Why are fathers missing in Mark 10:30? Mark 10:29 mentions father, but Mark 10:30 doesn't.

Mat 19:29 And every one that hath forsaken houses, 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 inherit
everlasting life.
Mar 10:29 And Jesus answered and said, Verily I say unto you, There is
no man that hath left house, or brethren, or sisters, or father, or
mother, or wife, or children, or lands, for my sake, and the gospel's,
Mar 10:30 But he shall receive an hundredfold now in this time,
houses, and brethren, and sisters, and mothers, and children, and
lands, with persecutions; and in the world to come eternal life.
Mat 23:9 And call no [man] your father upon the earth: for one is your
Father, which is in heaven.
At the risk of sounding sexist, a young person would probably have been quite happy to have multiple mothers (they dote on you, they feed you), but to replace your father would be to replace your own identity.

Having a new father means you are totally different person, and to include the father would be to confuse the point that Jesus is trying to make - namely that every thing that gives you comfort which you forsake is nothing in comparison to what you will receive in heaven as a reward.

As Paul would say in Romans 8: 18


  I consider that our present sufferings are not worth comparing with the glory that will be revealed in us.