PROS AND CONS OF MOBILE PHONES. Would someone correct this for me, please? with second conditional

ADVANTAGES AND DISADVANTES OF MOBILES.

Nowadays mobile phones has have become part our lives, even almost everybody almost has a cell phones in these days. Nevertheless, like all things .I think there are both advantages and disadvantages.Firstly I will start with the advantages

Advantages:

Easy and fast communication.
To begin with, there are many benefits the phone offers, you can keep in touch with your family, friends and coworkers in real time, no matter the place or the country where you are in the world 

Emergency situations.

Parents can allow their children to own a phone, in case the of an accident or things like that, Parents could be reached by them faster and both could feel more secure.
Travelling with your phone is important, although the mobile cells doen´t guarantee safety ,but if you had a crash, you could make a call to someone to help you.

Multiple uses.

They can be used for a variety of tasks. You can listen to music, watch movies, play games, browse, text ,store notes............

DISADVANTAGES

Privacy.
Having all your information about on your device , however it would be convenient it is advisable to have a safe password,and so to avoid storing such as the data of bank and other personal information in your tool. This is important not to be in case you are attacked by hackers ....

Affect real interaction.
Communication face to face is getting poorer, with language more superficial , and shorter conversations.

Addictions.
New sociolgist studies in Britain concludes “ Many teenagers are fanatical about the use of their mobile phones, even is the act of staying in touch doesn`t matter. the development of friendship is being replaced by playing games, and so on.

in short..
In my opinion these devices has been the biggest invention in this century and they have provided new channels of communication,we can access all the world`s information no matter where we are ,just by using a device enough small enough to fit into one hand, but the excessive and bad use from these tools might also be dangerous for your mental and physical health.

Very good. My corrections are in red and my suggestions to sound more natural are in blue/grey.

You can say either:

"New sociolgist studies (plural) in Britain conclude"

or

"A new sociolgist study (singular) in Britain concludes"

Similarly, you can say either:

"Nowadays mobile phones (plural) have become part our lives"

or

"Nowadays the mobile phone (singular) has become part our lives"

PROS AND CONS OF MOBILE PHONES. Would someone correct this for me, please? with second conditional

ADVANTAGES AND DISADVANTES OF MOBILES.

Nowadays mobile phones has have become an important part of our lives, even almost everybody almost has one a cell phones in these days. Nevertheless, like all things .I think there are they have both advantages and disadvantages.Firstly I will start with the advantages

Advantages:

Easy and fast communication.
To begin with, there are many benefits the phones offers  many good things, you can keep in touch with your family, friends and coworkers in real time, no matter the place or the country where you are in

Emergency situations.

Parents can allow their children to own a phone, to be used only in case the of accident or things like that, Parents could be rearched them faster and both sides could feel more secure.
Travelling with your phone is important, although the mobile cells they doen´t guarantee safety ,but if you have a crash, you could can make a call someone to help you.

Multiple uses.

They can be used for a variety of tasks. You can listen to music, watch movies, play games, browse, text ,store notes............

DISADVANTAGES

Privacy.
Having all information about you in your device can be dangerous, even though they can be locked with a, however it would be convenient to have a safe password, so it would be advisable to avoid and so avoid storing such as the data such as of bank and other personal information in your tool. This is important to prevent any hacker attack. not to be attacked by hackers ....

Affect real interaction.
Communication face to face is getting poorer, with language more superficial , and shorter conversations.

Addictions.
New sociolgist studies in Britain concludes that “ Many teenagers are fanatical about using use their mobile phones, even is the act of staying in touch doesn`t matter anymore. the development of friendship is being replaced by playing games, and so on.

in short..
In my opinion these devices have been the biggest invention in this century and they have provided us with new channels of communication,we can access all world`s information no matter where we are ,just by using a device enough small enough to fit into one hand, but the excesive and bad misuse from these tools might also be dangerous for your mental and physical health.

Cool! I highlighted in blue suggestions, not mistakes! Mistakes are highlighted in yellow. Keep it up!