Wise words from raindance and snapdancer. Especially the part about not rushing in, gathering more information and experience, exploring various studios and options. It just seems very early in your dance journey to decide you want to be an instructor because someone suggested it to you (oh - and beware of flattery as a persuasion technique - there can be a lot of that depending on what studio you are at), especially when it hadn't crossed your mind previously.
Don't get me wrong, we need dance instructors, but it would be a shame if your joy and passion for dance to take a sour turn (esp so soon) if the instructor training process turns out to have some surprises that you find unpleasant, when maybe just finding a cheaper student/amateur option was a possibility. I am not an instructor, but I've had several of them and chatted with many more, including a number of trainees who did not last. There's a fair amount of non-dance related work as well - you may or may not consider this kind of stuff tedious - instructors are often responsible for the thankless tasks that go into prepping for and making an event happen (decorating, procuring provisions, stapling event schedules, sweeping the floor, plunging the toilet, etc etc). It's not just show up, teach, go home. Also if it's a franchise there will be sales quotas. Your dancing will take a backseat to your students' dancing - you will have to fit your own progress in when there's "spare" time here and there or on your own. This is not to discourage you - many dance instructors love what they do and are excellent at it (including several on this board) - but the initial period of paying your dues can be tough. I think the key is going in with eyes wide open and realistic expectations.