I think there is an actually an "addition" here rather than a change. You're an adult conversing with adults (I assume) and therefore the discussions you have and the marketing you see are more about sets targeted to AFOLs (Adult Fans of Lego).
The classic Lego childhood lines (Lego City) still exist and still work just as well for play and creative construction as they ever did - and they don't use a lot of 1x1s. It's just that we've also gained these new lines of large adult sets that never used to exist.