Level caps per expansion

Hello folks, I was wondering what levels you would recommend for self imposed level caps for each section of content?

I was thinking

Vanilla: 20 TBC: 30 Wrath: 35 Cata: 40 MoP: 45 WoD: 50 Legion: 55 BfA: 60 Shadowlands: 65 Dragonflight: 70 War Within: 80

This is in an attempt to experience as much of the game as possible like a long slow levelling experience when I get bored of farming, raiding or PvP

So, what do you guys think?