Interlaken offers mixed blessings to skiing families. Those with children too young to ski won't find any real full-time day-care within the resort and, even if there was, probably would not want to leave small children so far behind when heading off up to the Jungfrau resorts.
The best choice for daycare up the mountain is in Wengen, which accepts children from 3 months (there's another in Grindelwald taking children from 3 years), but Wengen is an hour by train each way - a spectacular journey sure to thrill children if they are interested by such things!
On the other hand there are small family-friendly areas close to Interlaken if you don't care about missing out on the spectacular Jungfrau scenery and skiing to be with your child! Of course it's not such a big issue with older children, and all will appreciate the many child friendly facilities and eateries for kids down in Interlaken itself.
3 stars out of 5 overall