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If a young person did this to you (seeing you as the elder), would you mock them for appearing inferior, or would you appreciate the respect and go about your day?
Don't have to do it every elder. Only grandmother and grandfather besides mom and dad. And only perhaps a few times a year.
Most importantly Hindus are taught to see God in every human being. This is why Hindus use prayer gesture when greeting one another.
When someone younger touches my feet I never feel a sense of superiority.