We moved to Wales over 2 years ago with people telling us that the Welsh hate the English etc, I knew it to be nonsense as I had visited Wales many times.
Now living in Wales, I have found the people so very friendly and helpful, of course there is a little light hearted rivalry, but it is just fun!
Just dont leave the beaten track, you may find yourself hanging upside down in a barn with your legs bound together!
I have also never noticed anybody start speaking Welsh when we have walked into a bar or a shop, total nonsense!!