It is generally better not to clean very old coins. Cleaning can potentially damage the coin's surface and remove its natural patina, which can decrease its value to collectors. Additionally, improper cleaning techniques can leave scratches or other marks on the coin, further reducing its value. It is best to leave old coins in their original condition and seek the advice of a professional if cleaning is necessary. **

Learning a new language is not so easy, as it requires consistent practice, dedication, and patience. Mastering a new language involves understanding grammar rules, vocabulary, pronunciation, and cultural nuances, which can be challenging for many people. Additionally, language learning often involves stepping out of one's comfort zone and making mistakes, which can be intimidating for some learners. Overall, while learning a new language can be a rewarding experience, it is not always easy and requires a significant amount of effort and perseverance. **

One thing that is not so good is the lack of communication in many relationships. Misunderstandings and conflicts can arise when there is a lack of open and honest communication between individuals. Additionally, the presence of negativity and criticism can also be detrimental to relationships and overall well-being. It is important to address these issues and work towards improving communication and fostering a more positive environment. **

Many black souvenirs are sold in front of the Eiffel Tower because they cater to the large number of tourists of African descent who visit the iconic landmark. These souvenirs often include items such as keychains, t-shirts, and figurines that feature cultural symbols and designs that resonate with black travelers. Additionally, selling black souvenirs can help vendors tap into a niche market and increase their sales. **

Animes that are not considered childish include "Attack on Titan," "Death Note," and "Tokyo Ghoul." These series often feature darker themes, complex storylines, and more mature content that may not be suitable for younger audiences. They explore deeper philosophical and psychological concepts, making them more appealing to older viewers. **

If you are not allowed to drive, it may be due to various reasons such as a suspended or revoked license, medical conditions, or legal restrictions. It's important to understand the specific reasons for not being allowed to drive and to comply with any legal or medical requirements. It's also a good idea to explore alternative transportation options to ensure you can still meet your daily needs. **

It depends on the context and the specific situation being referred to. "Not so bad either" suggests that something may not be as negative as expected, or that there are some positive aspects to consider. It could be interpreted as a neutral or even slightly positive assessment, depending on the circumstances. Ultimately, whether something is "not so bad either" is subjective and can vary from person to person. **

It's hard to say without more context, but if you're asking about someone's physical fitness or muscle development, it's important to remember that everyone's body is different and develops at its own pace. It's not productive to judge or compare someone's muscularity, as it's a personal and individual journey. Instead, focus on supporting and encouraging others in their fitness goals, whatever they may be. **