While the service life of most elastimer things is usually about 10 years out in the weather, it is not any kind of a given. Fuel lines in road vehicles now have to deal with non-gasoline components and that has been tough. Tires had to go from solvent carrier assemblies to low VOC materials and now have a shorter life on the shelf or on the road.
But, hydraulic lines have a pretty nice life. I just replace two that were over 40yo because the fabric jacket had decayed and fallen off and that made me nervous.
Matt