Its more noticeable now yes, people are more impressionable and encouraged to some extremes. But not sure the culture thing is that wide spread.
Its must be an American overly eager trend with sexual identity craze as such young ages, however tiny minority it is in grand scale. Because even in uber liberal Sweden, I dont notice a peep or anything remotely close to the hoopla you are exposed to in media or social media about this. We have an official gender neutral word "hen" (han = him, hon = her, hen neutral), that barely anyone ever uses.
Only thing you will notice is occasionally a Swedish government agency of some kind can get over eager with their pursuit to be "accepting " that they try to make some tone deaf policy, like female/women related illnesses or conditions taking out any mention of female in their wording, to be more accepting to Transgender people, and one paper wrote you don't have to be female to get pregnant, or not necessarily need to be male to get prostate cancer, both tone deaf instances of trying to be pro transgender. But most people reacted against it and said that's total BS, medical experts need to stick to medical facts and not involve politics to it. The backlash to that included even transgender activists and other lgbt groups etc.