Why does always the old people want to take my machine at the gym?

Literally I am on a machine for like a minute and they act all grumpy and want to take my machine. It’s literally all the 50+ year olds who want to, and I am getting really tired of it that they can’t wait a min or 2. It always seems to be me, do they see me as weak person so that’s why they can act like this?
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