20 or 30 years ago? Sure
These days? And ESPECIALLY for 3d printing? Fusion 360 IS the intermediary step between TinkerCAD and professional software.. and is the professional software too. And OnShape isn't THAT much of a step if you understand the basics from TinkerCAD et al.
Stuff can get VERY complicated if you are trying to make stuff for different processes (e.g. CNC) or want to run physics simulations (essential for any "real" part). But if you are just making a model to get sliced? TinkerCAD teaches you more or less everything you need to know to get going and the UX of Fusion and OnShape are insanely good.
And if you really DO want to go free: FreeCAD exists and is almost kind of usable these days (moreso if you have already learned the fundamentals of CAD in a more friendly tool).