Wear and tear of running gas with ethanol is miniscule compared to the cost and hassle of getting ethanol free gas.
I don't care if there's a gas station next door, and the price is really good - the supposed damage you're doing to your fuel lines and carburetor is so slight.
So much more likely that you're going to need to clean the carb due to sediment (which ethanol gas can exacerbate, sure). So much more likely your hoses and gaskets are going to fail due to heat cycles and oxidation. So much more likely your petcock is going to fail because petcocks suck.
But for the cost of ethanol free gas... if it makes you feel good, do it. I run premium for no goddamn reason.
I work for a scooter manufacturer, and handle parts and warranties. If ethanol fuel was an issue, we would change fuel line material, gasket composition and carburetor design - but shit has been the same since the 70s.
It's just mopeds. Drop $30 a season for carb gaskets, petcock and fuel line if you want. You can run regular gas with impunity AND ward off all the other fuel supply demons that aren't related to ethanol gas.