I guess it's instinct to not want to do lower body workouts

I've been weight training for about 5 years now, but strangely, I keep postponing or skipping lower body days.
It feels good once I'm done, but I feel like I'm subconsciously trying to avoid them.
(Maybe that good feeling is just the relief of knowing I don't have to do this grueling thing again for a while?)
They say you need to train your lower body harder as you get older,
but maybe it's because training legs harder than upper body interferes more with daily life?
However, looking around, it seems like everyone else hates doing lower body workouts too.