Age and experience disconnect

It's a peculiar experience to study with batch mates who are quite a few years junior to us both in age and in work-experience. And it seems more absurd when the younger lot do not harbour respect for us either in terms use of language (and body language) or in terms of showing appropriate attitude. I felt this within a couple of weeks of entering into IIM Calcutta as a full time PGP student after working for four years in the software industry. Sometimes it seems to me a bit offensive. I know one of my friends here with identical background as mine, facing similar issues. There are few students with as many as 10 to 11 years of work-experience. I don't know, though, whether they are encountering similar peculiarities. Or we may be 'recognition' seeker (to apply the newly learnt OB funda!) and have a different set of expectations. It would be wrong to put all the juniors in the same basket. There are some junior batch mates who genuinely respects us and try to learn from our experiences.
In whichever side the source of the disconnect lies, this is a sophisticated issue and in my opinion, the younger fellows should be little sensitive while addressing their senior batch mates.