Yes, we all do.
Some things to remember:
The higher your education index, the fewer workers you will have and the more professionals.
If you set your education priority total below 120, you will generate more LLWs as fewer of them get educated to professionals. That doesn't help with MLWs or HLWs though.
Be careful what you convert down. For example, if you convert nurses into HLWs, some of them will disappear the following month, as nurses have an age-range of 21+ whereas HLWs start at 24. All the nurses you converted between the ages of 21 and 24 will therefore revert to LLWs.
Hope that helps!
Hugs and respect
Jo