No, but I preferred how back in late-1e and 2e that you gained additional proficiencies at certain levels.
Ah, I understand. Yes, I'd like that.
On the other hand, I like being able to train something independent from level is even better.
This is why I liked the downtime rules from xanathar's so much.
Although not a single player actually tried that.
Maybe because it takes many weeks. And players often feel they don't have that time.
But still 50 days - 5*int mod is ridiculously fast (as is 30 days, even with a trainer).
What I would allow is training for a few days to get along woth some basic sentences etc.
3e did that with skills and feats, too (I have no experience with 4e, so I can't speak to that). I personally rather PCs gain proficiencies as a part of leveling than just whenever the DM remembers to reward the PC with a trainer that trains in something the player actually wants and also makes sense for the reward.
Skills in 3e were nice, I thought.
But often players felt the need to maximize them. That was actually the fault of 3e design, that in some places in the PHB but especially in later books (in 3.5 and then even more in splat books) you needed max bonus to actually compete.
At the latest stages of our 3e adventures, I jad a house rule, that you can't raise a skill above cross class skill cap, except when you either had a trainer or did use the skill a lot in the last level. That allowed everyone, even without maxed skills, to contribute in different situations. And suddenly everyone felt that they had enough skillpoints to distribute.
In 5e, proficiency and expertise is actually quite close to those numbers, at least at lower levels.
(cross class cap started at +2 and went up to +11)