Ok - let me offer my experience.
All I wanted to do was fly, so I had a trial lesson at 11. Clearly you couldn't even log hours towards PPL issue at that age - one had to be 13. So at 13 I started to learn. Had a lesson every 6 weeks at the early stage (I was a paperboy!), and supplemented with christmas/birthday/washing car money.
I found that the whole recency thing was never a problem - after 5 mins back in the stride of things again. I had to tweak the course a lot, as back then (mid 90s) you couldn't solo until 17, so I arranged the course to have all dual time complete and first solo on my 17th birthday (missed that by a week due to weather). Then polished off the solo time quite quickly (better paying job) and bobs your uncle. Job done.
So I'd advocate spreading it out. I enjoyed looking foward to my next flight throughout the period, and really made sure I was up to speed on the home study. And an advantage - I recently went flying after 8 months gap, and the instructor couldn't believe (i) I hadn't flown for that long and (ii) I'm as inexperienced as I am. This is a reoccuring scenario. So I think gaps in training stand you in good stead for later on.
Happy landings
ef