Life is like a joke, wisdom?

As everyone knows when we book long distance buses in Germany we have a seat number but usually no one really cares or try to find their seats. I mean when there are 2 seats empty who would bother to find the seat maybe next to a stranger according to the seat number? OK, maybe there is a hot girl or guy next to your seat number, but how high is the chance to have a seat number next to me on the bus ?

Just imagine if you get on the bus and saw an old lady sitting on the seat number you booked, what would you do ? I saw once a middle age woman ask the old lady  to leave her seat really, even i offered her my seat she doesn't care, she just wanted that seat. I thought it was weird, but then it happened to me last week. 

So last week I was sitting on the bus from Berlin to Dresden, someone came in and told me it's the seat number they booked, so i just stood up and moved to the empty seats right in front of it. Moment later another guy came in and told me the same, so i again stood up and moved to the empty seats on the right. But then another lady came in and told me the same, so i again stood up and moved to the seats right behind, and i told the girl there it is the seat number i booked, can you leave ? 

So what did we learn from this at the end of the day ? We shouldn't ask people to leave just to sit on our seat number cause it can save other people from trouble? we should always sit on our seat number to avoid our own trouble? No, it is just how easy we are influenced by others, and how we could change our opinions and values in a way that we couldn't imagine. I thought that woman back then was weird, but now i can understand it's legit.