One or two weeks studying abroad

Hello, I'm wondering of which schedule would be better for my trip to Japan and I can't decide. I know it's a personal choice but if someone wants to give his/her advice I would be happy to hear different opinions. I wanted to go studying abroad in Japan with a Hostfamily and I already bought the flight, but then I kind of regret the dates I choosen, because it felt too much days away and alone. Then my father said he would like to come too, so...the 2 plans I'm struggling to choose with are these:

PLAN A: Study abroad on a Kyoto school for 2 weeks (16 days actually) + 3 extra days in Tokio for visiting a friend

PLAN B: Study abroad on Kyoto school for 1 week (9 days actually) + 10 days with my father going to visit Osaka (4-5 days) + Nara (1-2 days) + Tokio (4 days) (where I could also meet my Tokio friend)

I kinda feel both are good plans but I feel its ''coward'' to choose Plan B, even though it feels right at the same time.

¿Any opinions? Thank you all

Assuming that what you want to study is Japanese, studying for 1 or 2 weeks makes little difference, as it takes years to study Japanese.

I would be the decision on what you need to do after your vacation. I once went for a 2 weeks study trip to France to study French and after the two s weeks of vacation needed to go back to work. While my French definitely did improve, it also felt like I hadn�ft had any vacation that year...

I'd prefer to be holidaying instead of studying. B is more to my liking.