You might explore the concept a little more in consideration and especially as it relates to ownership and contracts. That is to say you might need to better define what it means to "own" your home network (are you paying the bill or is it your roomate? Did you sign the subscriber agreement? etc.).
Exploring what you mean by your network might also be useful. In particular, are you setting up a kind of virtual network on a single computer or a small set of hubs and swtiches and exploring those, or are you setting up several segments or browsing exsting segments on "your" network as they already existed with security protocols in place (e.g. where some may be connected to corporate networks, VPN, or other Internet based services? Would you know?)
If you find that you might have some amiguity, always remember you can set up a benign network or virtual network that doesn't require an internet connection at all to use many of the functions that you learn about in such networking and infosec courses.
Edit: In order to better specify the idea presented in my answer, I should have mentioned an "unless" you are only able to conduct your learning in an internet (as opposed to intranet or lab) setting. That is to say, again, if you use a lab that is airgapped from the internet and are using infrastructure you own, no worries. If you are using internet that is in anyway shared and you are not the one under contract, then there may be issues of liability to consider.
