Ah, sorry, I was being unclear. Whatever you ultimately want to do, you will probably learn on two seaters and it will be during the day and in fine weather. It's just that once you have qualified, if you want to do more than that, you need a full international (EASA in the UK) license for conventional light aircraft. If long term you want to stick to two seaters, day, VFR (more jargon to learn!) then you have the microlight / VLA option.
This is the excerpt from a previous answer:
A PPL with a SEP rating, allows you to fly, not for profit, a single-piston-engined, non-turbocharged, fixed-pitch propeller, fixed tricycle gear, non-pressurised land aeroplanes (with a few exceptions), during the day, in good visibility and within sight of the ground (in UK). There are few of these aircraft which have more than 4 seats. See Pilot licensing in the United Kingdom - Wikipedia, the free encyclopedia for a summary of different licence options.
So, following your understanding, when I do my PPL, I still cannot fly a four-seater and have to progress to sth more general?