I qualified 27 years ago the old fashioned route, 4 year degree in a teacher training college with the 2nd year spent at a university studying my main subject. I got a BSc Maths with Primary Education with QTS. The entry requirements back in my day were two grade Es!
Nowadays, it is a three year degree BA Primary Education with QTS and entry requirements of 112 Ucas poins or BBC. In places like Christ Church Canterbury, you can even do one of your teaching placements in Ghana.
During my time in 6th Form, I used to help at Brownies and in a primary school on Wednesday afternoons. We also had students from our local Grammar doing this at my school. Quite a few would go on to teach. I actually teach with two of my ex pupils who I taught in the Infants then came back for work experience at 16 years old. One went the BA primary route, the other the Degree then PGCE route.
As someone previously said, if you find the right schools it is a great and rewarding career. If you have a bad head, difficult colleagues etc everyday will be an effort. I have loved every minute of being a teacher and being in the classroom. I have never sought leadership roles, however due to experience I have ended up being part of the SLT, but my heart lies in the classroom.
Doing a degree and PGCE gives you more options, doing a Primary Ed degree probably prepares you better for the classroom.