delaying in performing hajj

Sending one's parents for Hajj

Q: An elderly man and woman have been accredited to go for Hajj. However, due to limited financial means, they are unable to go. Their young son has already performed Hajj and has been accredited for the second time to go for Hajj. Is it the son's responsibility to first send his parents for Hajj?

Delaying in performing Hajj

Q: A man who possesses the nisaab is not performing Hajj because if he does so, his parents will get hurt as they have not yet performed Hajj/Umrah. Should he perform Hajj or should he delay the Hajj so that his parents are not hurt?

Another person planned to go for Hajj, but his father said that he cannot go unless he pays him a huge amount. The son couldn't pay him the amount and so he didn't perform Hajj, as he thinks that by disobeying his father, he will not enter Jannah. What should he do? Listen to his father or perform Hajj?