WGs been saying cost of living has hit a lot of punters. Punters don't have much disposable cash as before. Most WGs have moved on to getting fulltime jobs & punting part time or on their day off
This is likely a major reason in many parts of the country. There's been talk on the WG forum of dusty phones for lasses who used to do well before CoL crisis set in. For some making a living on AW is a big hassle, with only a small pool of decent paying punters in the area.
OP is right though blaming tech for the dearth of good british lasses on AW, though there's more than one tech cause.
OnlyFans is probably quite minor, as others are saying only the elite few seem to make good money on it, data suggests average earnings are low. As the good Vice Admiral says, some lasses have likely 'cracked the code' and found better ways to make money on online from Simps & White Knights - but this is likely only be supporting a fairly small number of lasses. When any hussle becomes widely known, too many cash seekers pile in for it to stay lucrative. There's far more white knights out there than many here would like to think, but they're still a limited quantity.
Another way tech is spoiling things is social media. Young women in particular can experience that as a constant judging force watching over them, making them less likely to want to make a living from prostitution (even though being a WG may in some ways meet less disapproval as was the case in the past. ) Seeking on the other hand seems much less frowned on, even years ago I was hearing reports it's widely discussed as an option on university campuses.
Going back to Maak's point about punter cash, here in London there a constant stream of new lasses to try. (Admittedly most of them are not british, but some of them are). Has to be mainly due to the concentration of punter cash here. Many of these lasses are agency only. According to a new London WG I punted last year, as soon as she appeared on AW she had several agencies offering to find work for her, one even saying they'd provide a chauffeur. Perhaps agencies are snapping up some of the best AW talent from elsewhere in UK too.
There's talk of the economy rebalancing away from London & when that happens, that might improve punting prospects for rest of UK.