Skimmer pool with child-friendly solution

In my parents-in-law's garden, there is a wonderful pool that we have enjoyed using every summer for many years. However, since we have children (who are constantly running around and roughhousing), the joy of summer at the grandparents' place is not quite as great anymore. No matter how often you explain to them that they shouldn't get too close to the pool, they don't listen anyway, and even if they did, it can still unintentionally happen quickly that they slip and fall into the pool. No one can stay sitting calmly. Now we are looking for an affordable solution that looks good and, of course, contributes to more safety and less worry. We are reluctant to pay five-figure sums for a solution that theoretically only needs to last a few years. Do you have any ideas?

1. learn to swim quickly
2. until then, stay in the garden only with a children's life jacket, like when sailing/houseboating
3. unsure, move coffee table and place of stay to the pool

Set up chicken wire. Not nice, but durable enough.