I'll be honest Welshie I have been against the idea Stevie G would be the automatic choice to step in when Klopp calls it a day and that was down to his temperament. His personal life, growing up he was naïve and immature because there were quite a few stories of him being associated with various gangsters in Liverpool. However since he retired from playing he has put his head down, grown up and worked hard learning the various facets to coaching and taking his badges.
Klopp helped him out and allowed him to manage the u18 Liverpool team and then he surprisingly (I thought it would be too big a job so early in his Managerial career) took over at Rangers where he was a huge success, unshackling the stranglehold Celtic had in Scotland. It wasn't just domestic success but he was taking Rangers to the later stages of european competition making them difficult to beat.
The Villa job was probably the right step for him because their expectations are not as high and I can see him being allowed time in that job as long as he keeps them in the prem. Villa will also have money to spend, probably not as much as the City's, Man Utd's and now Newcastle's of this world but better than most prem clubs. Their owners having the successful franchise team and last years NBA Champs Milwaukee Bucs. They also own a successful investment group, ski resort and luxury hotel in Wyoming, USA known for where the rich and famous hang out.
Stevie G is not ready now but it might be a different matter if Klopp does leave in 2026 and Stevie continues to gain knowledge and experience.