-ddohnggo
I agree with the gents above. Trackpads are very durable, they have no moving parts - that's why many computer manufacturers offer trackpads.
The only gotchas are in keeping them clean and dry. They operate by projecting a 2-dimentional electromagnetic grid just above the surface that works by detecting the impedance by an organic substance upon that field, e.g. your finger.
However, finger oils, water, and other organics cause impedance as well, so please be sure to keep it clean. I've heard and seen trackpads of a slew of manufacturers "go bad", but that was a result of an organic varnish that built up on the pad over years of non-cleaning (eww!).
Just keep it clean and it should outlast your first-born 😀