Yes, it's not worth doing. TikTok is one of the easiest platforms to build organically if you stay consistent. You want real followers who are actively seeing your content and engaging with it, which will then push your content to new audiences and countries.
When buying followers, especially ones from SMM panels, the accounts will have no engagement with your content at all which tells TikTok that your content may not be engaging people and will result in you getting no new viewers. Additionally, TikTok has some of the most advanced detection for botting or irregular activity of most social media so you run a great risk of getting banned or just having a dead account.
Put time into creating quality, engaging content and you can gain thousands in a day easily. From experience, you can hit a lot of momentum if you have a video that does well with lots of engagement. The followers come naturally.
Social media platforms love accounts that get people to spend more time on their app, so creating engaging content is key. Stick to this and there will be no need to ever think of buying followers for your account, especially trivial amounts like 1000, that will do more harm than good.