Is it bad to keep my own expensive makeup separate from the drug store kit I use on clients?

Context: im a makeup artist just finishing school..

I don't know if it’s bad or not im gonna buy better products for my kit for work but im just starting out and want to keep my own stuff for me because i spent a lot on it and i dont want to overuse it or it to get lost in class when everyone’s makeup is everywhere

Is it bad to keep my own expensive makeup separate from the drug store kit I use on clients?
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