Honestly, I think some of them do it - that and dropping their Ts - in order to sound (as they think) a bit more ‘edgy’ or more like what they graciously like to think of as ‘ordinary’ people.
I swear some of the presenters on the Beeb now are instructed to drop Ts, whether they normally would or not. (‘We can’t risk sounding remotely posh!’)
NHS U turn on trans terminology
Prescription charges up again.