I hate to say it and would probably come around and bite me, but gas prices have to go up for people to drop their scooters and commute.
For me, scooter is just too damn convenient and cheap compared to commuting. If I regularly commute to and from work 5 days a week and do some errand running on the weekends. I fill my tank up 90NT for the week.
90NT is approximately 4-6 rides on the MRT or bus which accounts for 2-3 days.
Most people on scooters will probably think the same way and also think that scooter takes me directly to my destination in which sometimes are a little far from MRT stations.
One may argue, Gogoro is the answer. However, with the higher market price and the monthly battery fee, things can add up and you're still spending more on the batteries than gas.