Jeff Carlsen
Adventurer
For some odd reason, the first thing that came to my mind when I read answer #3, is that now a 5e 1st level PC with proficiency and expertise has +4, which is exactly what a 3e 1st level PC had in a maxed-out class skill, while a 1st level PC with proficiency only has +2, which is exactly what a 1st level PC had in a maxed-out cross-class skill. Nothing more than a coincidence, but it's what immediately came to me![]()
I noticed that too. It also illustrates the effect of bounded accuracy. Skill ranks maxed out at 23 in third edition. With expertise, the maximum is +12. So the bounds have been cut in half.