Sound

I have an iPhone 11 Plus. I have had several iPhones over the years and they have all done the same thing Seems like the older the phone gets the harder it is to hear on it. My husband also can’t hear as well on it. I have my master volume up maximum!! It has happened with every iPhone I have had. When I hold it to my ear. I can’t hardly hear. When on speaker I hear much better.

YES I have had my hearing checked. I am wondering ( since I get bugged to death by my carrier to upgrade ). But have no other issues with the phone and it has long been paid for. If maybe it’s a tactic to get me to buy another phone. Because all mine have sone this. Has anyone else experienced this. I HAVE CLEANED MY SPEAKERS very well. And that helps some. I do it about once a month since I got the phone. Does anyone know is there something I am missing that should be adjusted or turned off or on?
Again I ask. ANYONE else have this problem. It just started about 6 months ago. I’m not thinking that it’s just this phone since it has happened to every iPhone I have owned. I HOPE IM IN THE CORRECT THREAD. IF IM NOT PLEASE DIRECT ME TO WHERE I SHOULD BE