Can’t help with licence dets – suggest you check.
re transport I’d suggest understanding road and journey first.
ie scooters are SLOW -ie a 40mph vehicile where the average speed is 55mph is a liability/traffic jam/nightmare and small wheels are crap with rough roads/potholes.
To be honest 30k on a small engine (esp 2 up sounds crap), I’d say 250cc.
As a me personal preference I like trails bikes.
Your base costs won’t change (well ok from a scooter to a harley they might but from a scooter to a 250 – not that much – and with 250 you can sensibly do 30k 2up easy (and if it’s a trail bike you can explore local shrubbery etc etc