What is the best age for the goalkeeper to make it professional or are at there peak?

The best age for a goalkeeper to turn professional generally falls between 18 and 23 years old, as they often emerge from youth academies at this stage. Goalkeepers typically reach their peak performance around their late 20s to early 30s, benefiting from experience and improved decision-making skills. However, the trajectory can vary based on individual development, training, and opportunities within clubs.