Yeah I really don't think the fish care much either. My 6 year old picked out the decorations for our 20 gallon....... Two pink plants, two purple plants, two yellow plants, two blue plants, pink plastic coral bubble maker, that same sponge bob, several littlest petshop characters but the natural gravel didn't look right to her. She wants pink gravel when we move it into the 60 gallon. Lol. Not my thing, but she loved that tank and now loves fishkeeping because of it.
You re right to each his own....