Both should be changed regularly, and both for the same reason.
None. Babies don't have the motor skills or the depth perception to change a light bulb.
Toucan
Their mouth is moving.
Because deep down, they're good people.
Because you have to change them.
They both need to be changed after a while for the same reason
Friend has an eyepatch on for some reason or another and I'm running out of decent jokes.
Someone who knocks on your door at 6 a.m. for no reason.