England reached a second successive European Championship final despite failing to win two of their three group games. They were booed off the pitch by the their fans after draws against Denmark and Slovenia.
They were moments away from going out at the last-16 stage to Slovakia before Jude Bellingham’s acrobatic equaliser, while England needed penalties to overcome Switzerland in the quarter-finals.
Trippier, who was appearing at his fourth major tournament for his country, said he was optimistic about England’s future.
Midfielder Kobbie Mainoo, 19, only made his England debut in March but played a key role in the run to the final, while defender Marc Guehi, 24, was also appearing at his first major tournament and impressed in Harry Maguire’s absence.
In addition, Cole Palmer, 22, scored in the final after coming off the substitutes’ bench.
“They will have learned a great deal from his tournament,” added Trippier about the inexperienced players in Southgate’s ranks.
“The young players stepped up in big moments for us. They can learn a lot from this. It will make them grow.”