First of all, are you asking about the Nintendo Switch? If you are, then ask yourself this: do you like video games?
If you are, then you have nothing to worry about. Game titles range from for children to adult.
Some examples for adult themed games would be the Bayonetta series, The Edler Scrolls V, Outlast 2. Of course, one can contend what their definition of the statement "Nintendo switch is for kids" would mean (i.e. the games are rated for kids by a censoring body, or playing video games aren't for adults), but in the context of you asking for opinions about a console, I'm going for the former.
The best solution I can suggest whether it's worth buying is checking whether or not:
1. the games you want to play are on it
2. the games you want to play on it run how you want it (frame rate, etc.)
I own one and I'm glad I do, especially during these times.