How can you feel entitled to tell another passenger what they can and cannot do with their seat? I don't like coach class anymore than the next person but I pre

How can you feel entitled to tell another passenger what they can and cannot do with their seat? I don't like coach class anymore than the next person but I prefer my seat reclined so I can sleep. Sorry if that encroaches on your space but take it up with the airline not the passenger using their seat as provisioned.