It’s not always easy for players to continue playing through busy periods in their lives. Going off to tournaments is time consuming in itself, and then there’s the issue of preparation. It’s this latter consideration that I would like to address here.
Players who like playing sharp openings in order to gain an early initiative are going to struggle to find time for maintenance. Opening theory is constantly changing and they will struggle to stay up to date with sharper lines. The obvious solution would be for them to switch to quieter lines when they find themselves with less time. But the problem with switching is twofold. First of all they may not understand the new stuff as well. And it can also be out of tune with their entire approach.
For this reason it can make sense to adopt a more solid approach from the start. Instead of teaching just gambits, tactics and attacks, why not focus on solid openings, strategy and endgames? Many junior coaches will argue that kids find such things boring. I would argue that it depends how they are taught.
One player who seems to have adapted well to a busy lifestyle is GM Jonathan Parker. Playing quiet openings and relying on middle game skill is serving him well in the few games that he plays. Here’s an example from a couple of years back: