Hi and welcome to Col, I had a similar problem with Belle who is now 8 mths, I was so excited that she could get out and about but she just didn't want to walk on her lead, she was great on it in the garden and she was fine offlead in the park. I asked for advice on here and had lots of great replies, what worked for us was the thought that Belle was picking up on our anxieties as we were waiting for her reluctance. So one day I changed her collar to a harness and literally strode confidently and quickly being firm but gentle and walked, to my amazement she walked too
We have never looked back. I think it worked on 2 counts, I stopped coaxing etc and just walked and changing her collar to a harness stopped me worrying about hurting her neck if I pulled her a little. She is now great on and offlead even my 8 yr old can walk her confidently (with adult supervision of course
)
I am sure others will be along with other advice soon as I think its a fairly common problem