Let me push back against that a bit.
My phone is not a fashion piece. AFAICT the blue bubbles will show up with an old 4S just as well as with a 14 Pro Max.
I have an iPhone - which I got after many years with Android - because iMessage is an essential app for me. I live in the US, so my business partners do not have [choice of alternative messaging app] installed and they are not going to install it just for me. I'm a doctor working in a hospital that has two complete dead spots for cell reception, and whose IT department blocks WiFi calling. So I can't make phone calls on either service, and only on iOS can I get messages that are really, really important over the hospital WiFi.
I could talk until I was blue in the face about how other methods are better. Or how Apple is being a gigantic bunch of assholes by not using something other than vanilla SMS if you're not an iMessage user. But it's sitting at about 30:1, and you can either go along and be aware of important things going on, or you can be left out.
When business decisions are being made over those conversations, I'd be a fool to ignore it. I don't much like the iOS way, having gotten used to Android and LineageOS, but after my experience with the Nexus 6P that suffered the infamous "battery goes to shit overnight one day" problem that Google wouldn't fix, as well as being dropped from updates after two years, five years of security updates from model introduction sounded pretty nice.