There's a huge service infrastructure around phone repair and battery replacement nowadays. Not only can you go to the manufacturer and let them do it, but you

There's a huge service infrastructure around phone repair and battery replacement nowadays. Not only can you go to the manufacturer and let them do it, but you also have a choice between lots of small phone repair shops, of which there are literally hundreds to be found in any bigger city on this planet. They are as ubiquitous as gas stations. This development has made non-user-replaceable batteries much more bearable.