The fuel hoses on 2 cycle engines (weed eaters, chain saws etc) are junk from the start and ethanol will eat away at them and turn them into more of a gel like substance which you can squeeze between your fingers like mashed potatoes then the filters fall off the hose within the tank and also destroys the primer bulbs if equipped, however, while using non-ethanol does not usually cause these issues you still have other issues to contend with. Draining the fuel out of these 2 cycle units for storage can have an adverse effect on the fuel hoses as well. Draining them for storage can cause the hoses to dry out and become brittle thus the filter again falls off the hose and must be replaced, keep in mind ethanol fuels must be drained because any moisture at all during storage will cause phase separation creating a slimy gel in the system and plugging up everything. Over the years I had decided to be contrary to the idea of draining these non-ethanol fuel systems for storage, the 2 cycle oil mix is a blessing for storage, if I am just storing them for the winter I do not drain them and have had little to no issues but if it is going to set for a couple years then definitely drain them because the fuel will turn to varnish causing a host of issues
. The fuel hoses on my tractors usually get replaced due to external dry rot and cracking, the fuel does not really deteriorate the hoses. The fuel lines (indicating metal of course) can collect condensation while being stored but usually over a winter is not enough to cause an issue. I will add I do not use any fuel additives in my machines with the exception of lead replacements for my engines from the 50's and 60's.