Well from d look of tinz, the gal with d baby has a school bag strapped to her back which suggests that she is a young gal hu cudnt kip her knees 2geda...as 4 d young boy on clutches, he can make do with d floor bcos if he wia to b in 2much pain, he wudnt b travelling in a train..... D old man more or less look like a labourer or begger ,so he sit on d floor.........
Therefore I will give the seat to d old Lady
