which means he would like the young kid to choose. In this case, that 长者 should be happy with any choice that kid chooses. I always educate my son, when somebody let you decide what to do, just go ahead do it. If he has second thoughts, he should imply/tell you early. If he does not express anything, it means he will be happy with either your choice.
walked slower; the father gave up his choice and hope that ABC boy can politely figure out what the real thought in that father. It may happen to a boy grown up in China. For ABC boys, like my son, I will not teach him to do those kind of guessing games. If the father gave up his choice, it is the ABC boy's turn to make a decision, especially that boy already consulted the opinion of the daughter.
post such kind of tests to my son's girl friend, and will not be happy if his girl friend's parents gave him such questions. Just behave as an respected elder gentleman.
maybe different families have different 家教. Just do not get married between different families.
ate too much. OMG, i do not think parents in China still think in this way.