After becoming empty nesters, I coverted a 20' x 30' space to a listening room. Built up rig and room for listening. Sound absorbtion, diffusers, lighting accents, big recliner stayed at apex of speaker triangle. Wife and I shared the listening sweet spot.
Last kid that left came back with hubby and 2 kids a year ago so bye bye listening room.
All due respect, he served our country 4 years, but back to square one for them.
Wife did offer living room for rig, but its a big echoy room. Alot of challanges if I get the time.
Headphones a no go for me. Wife and I share the music moment.