It may be many things, but I very much doubt the motivation is a money grab. A few people paying $45 isn't lining the pockets of some government official, or plugging a hole in any possible budget.
Dealing with the presence of travelers who haven't updated their driver's licenses requires a bunch of extra staff to perform the time-consuming additional verifications. The basic idea is for those staff to be paid by the people using them, rather than by taxpayers and air travelers more generally. As well as there being a small deterrent effect.
Dealing with the presence of travelers who haven't updated their driver's licenses requires a bunch of extra staff to perform the time-consuming additional verifications. The basic idea is for those staff to be paid by the people using them, rather than by taxpayers and air travelers more generally. As well as there being a small deterrent effect.