What do I say about why I left my last job? after 14 years as a retail manager

They always ask why I left, and I freeze. I am in Birmingham, in case local advice matters. I have been practising in the mirror. Do they ask follow-ups?

I keep it to two sentences: the company cut my team, and here is what I am proud of and what I am looking for next.

Say it plainly and move on to what you can do. Interviewers usually move on if you do.