not necessarily about big tournaments though IMO. It's about playing KO games against other big teams, penalty shoot outs etc. Good to get initial experience of those before senior level maybe? Maybe that would lead to seniors not crapping themselves if they ever get to KO stages again (not a given obvs) at senior level.yep, this was my thinking.
terrible idea imo - never really watched u21 tournmaments but i doubt it gives players that "big tournament" experience which would be the only benefit for them you'd think.
holds back future youngsters coming through and gaining the valuable experience themselves. like you said, these two have already been to a senior WC in south america - this won't help them at all.