It's a fair point and something I've mentioned before. The Core courses are more compressed versions of their respective fundamentals and do tend towards a lot of 'presentation' without contextual practice and production as punctuation. Luckily for sculpting you'll find a load of YouTube tutorials and demos where you can practice using these tools. For sculpting it's fairly straightforward and you just need to get stuck in and start using the brushes. Getting a good result with sculpting requires less technical understanding of how to do things (like modelling) and is much more dependant on artistic skill and experience of using the tools